History Main / ClashingCousins

%%%%This page has been alphabetized. Please put examples in the correct order. Thanks!
%%

* When introduced Neji from ''Manga/{{Naruto}}'' has a beef with his cousin Hinata for being the daughter (and thus, heir) of the main Hyuga branch (while Neji is in the branch family but is generally stronger than Hinata). He softens after Naruto beats him in the Tournament Arc, though. They eventually become close friends [[spoiler:and Neji undergoes a HeroicSacrifice for Hinata]].
* Downplayed in ''Manga/OnePiece'' with [[spoiler:Zoro and Kuina]] who had a FriendlyRivalry before the latter's death and were paternal second cousins (though both of them were completely unaware that they were related).

* ''Fanfic/ChildOfTheStorm'' has the canonical cousinly relationship between Harry and Dudley. Unfortunately, as WordOfGod notes, here Dudley never has his canonical experience with the Dementors to show him how awful a person he was and inspire him to [[TookALevelInKindness become a better person]] (especially regarding Harry, who in canon saved him). Instead, he ended up in the Foster System after his parents were arrested, and fell right into the lap of Sinister. Turns out he has an X-Gene too, and he reappears as [[spoiler: the Blob a.k.a. the Beast of the Red Room]] and a Grade-A monster, and thinks he can do what he wishes with Harry, whose powers are restricted. [[CurbstompBattle As it turns out, not so much]]. Then, he [[spoiler: gets turned into a vampire and makes the grave mistake of almost killing someone Harry likes a great deal. The results are brutal, precise, and terminal]].

* In ''Bright Jewels, Chained City'', a StoryWithinAStory in the ''Fanfic/SkyholdAcademyYearbook'' series, feuding cousins Gaston and Celeste are both vying for the same important political appointment. (They're based on cousins Grand Duke Gaspard and Empress Celene from ''VideoGame/DragonAgeInquisition''.)
* Mei Terumi and Kurotsuchi in ''Fanfic/SonOfTheSannin'' are both descendants of the same clan, but since Mei's mother defected from Iwa to marry a man from Kiri, Kurotsuchi views Mei as the daughter of a traitor. The latter's [[TheTease personality]] does not help in smoothing things over, either.
* Ned and Tony Stark in ''Fanfic/AManOfIron''. Ned dislikes Tony for his flippant attitude, arrogant and narcissist personality, and utter disregard for his Northern heritage, while Tony dislikes Ned for his HonorBeforeReason attitude, grim personality, and seeming refusal to move from the past. The trope gets eventually downplayed as the two of them get past their differences and learn to understand and appreciate the other better.

* In the ''Literature/{{Deryni}}'' works, Conall Haldane is jealous of his cousin Kelson. Kelson is the son of King Brion Haldane, while Conall is the eldest son of Brion's younger brother Nigel. Kelson is sometimes low-key about his authority, while Conall is very (perhaps excessively) proud of his royal rank; Conall haughtily stands on ceremony at the court of the Earl of Transha, and Kelson scolds him for it. Later on, Conall secretly seeks to learn to use the "Haldane powers", though they're traditionally reserved for the ruling monarch (who is, at that point, Kelson), and he pursues Rothana Nur Hallaj after Kelson disappears in ''The Quest for Saint Camber'' in large part because she's not only beautiful, but also because he once witnessed Kelson wooing her. Conall actually persuades her to marry him since Kelson is presumed dead and his father Nigel is then in a coma and not expected to come out of it. Eventually, Kelson and Conall [[spoiler:fight a duel arcane at the end of The Quest.]]

* Inverted in ''[[Literature/{{Fudge}} Fudge-a-Mania]]'', when Peter and his rival Sheila become (step)cousins due to [[DecemberDecemberRomance his grandmother marrying her grandfather]].

* ''Series/{{Belgravia}}'': John Bellasis doesn't know that Charles Pope is his cousin (Charles is the son of John's deceased first cousin Edmund), but sets himself up as a rival because John's aunt Lady Brockenhurst is funding Charles' business. Charles is also in love with John's intended Lady Maria Grey, but doesn't think he can win (to be fair John would be happy to release Maria but her mother presses the matter). Things escalate when John learns that [[spoiler:Charles is Edmund's legitimate son with Sophia Trenchard]], leading to [[spoiler:John attempting to murder Charles.]]

* In ''WesternAnimation/{{Rugrats}}'', one-year-old Tommy Pickles has an antagonistic relationship with his three-year-old cousin, Angelica, who regularly calls him and his friends "dumb babies" and bosses them around. Even ten years later in ''WesternAnimation/AllGrownUp'', they still don't like each other very much.

* In the source material of ''Manga/CardcaptorSakura'', Chihiro and Yamazaki have the PuppyLove version of BelligerentSexualTension, with Chihiro often acting violent whenever he enraged her. In the Nelvana dub [[RelatedInTheAdaptation the two were retooled into cousins]], turning their dynamic into rivalrous cousins instead.

** Harry was reluctantly taken in by his aunt Petunia's family as a baby after his parents died. They spoiled their son Dudley, who used Harry as his favorite punching bag; Dudley never manifests any jealousy towards his cousin's magical ability they way Petunia envied her sister Lily, perhaps because of his father having drilled it into him all his life that Harry is "abnormal." After Harry saves Dudley from a Dementor attack, Dudley starts becoming a less repugnant human being, actually showing concern for Harry's safety before they part, and later sending Harry some of his childhood items after Petunia dies. WordOfGod says that as adults, they sometimes get their children together for playdates.

* ''Series/ThatsSoRaven'': In a first season episode called "Dissin' Cousins," the show's TitleCharacter is revealed to have a rich and beautiful (but also mean and snobby) cousin named Andrea who lives in Europe and gets to travel to all kinds of exotic places all over the world--Raven's friend, Eddie, also has this huge crush on Andrea. In the end, Raven and Andrea manage to patch things up when their relationship turns out to be a case of MutualEnvy--Andrea explains to Raven that even though she has the chance to live in Europe and travel to all kinds of exotic places, she hates having to move around so much and has always been secretly envious of Raven's much more "normal" life (it's unknown if Andrea knows about Raven's PsychicPowers).

* The premise of the CBBC comedy ''Kevin's Cousins'': Kevin's horrified that his cousins [[GirlsHaveCooties (who happen to be girls)]] will be staying with him for the summer.

* Downplayed in the ''WesternAnimation/HowToTrainYourDragon'' films, as it's not explicitly stated that Hiccup and Snotlout are cousins (this is mentioned in the books). Snotlout is a bully and implied to be at least slightly resentful of Hiccup's position as the chief's son, although as Hiccup becomes more popular with the other kids, the resentment eases up and they clash much less.

* In ''WesternAnimation/{{Rugrats}}'', one-year-old Tommy Pickles has an antagonistic relationship with his three-year-old cousin, Angelica, who regularly calls him and his friends "dumb babies" and bosses them around.

** It's revealed that Agatha has a cousin on her mother's side in the form of [[spoiler:Zola, who was also employed by a conspiracy to claim Agatha's title She refers to killing Agatha as [[https://www.girlgeniusonline.com/comic.php?date=20101006 "prun[ing] the family tree"]]]].

* ''WebAnimation/AnimatedInanimateBattle'' has Nabla and Alec, two math symbols who are also cousins and don't get along very well. Alef finds his cousin's detailed plans to be boring and finds simpler ways to execute during challenges (and since he has most of their team, Team 4, under his influence, they tend to go with Alef's method). He also gives an encyclopedia with every page torn out of it except for the pages about donkeys for Nabla's birthday. That's not saying Nabla is completely helpless, though, as she managed to become friends with Glue due to [[CommonalityConnection both of them hating Alef]], and she might be able to turn the tides of control over her team with her help.

* Chapter 98 of ''Manga/KaguyaSamaLoveIsWar'' reveals that this is the case with Kaguya and [[spoiler:Maki]], with the latter being the only character in the series who is outright rude to Kaguya. Flashbacks in chapter 168 show that this was actually invoked by the latter's father, as the two sides of the family have been hostile to one another for decades, [[spoiler:though that same chapter has the two of them put aside their differences and [[ItMakesSenseInContext and bond over a porn DVD]].]]

* In ''VideoGame/FireEmblemEchoesShadowsOfValentia'', [[spoiler:Alm]] fought against his distant cousin [[spoiler:Berkut]] for several occasions. However, they didn't know about their familiarity until the final act.

* [[spoiler:Lily]] and [[spoiler:Shizune]] from ''VisualNovel/KatawaShoujo'' are revealed in both of their arcs to be cousins. They get along poorly due to their contrasting personalities. It doesn't help that they can't communicate well due to [[spoiler:Shizune being deaf and Lily being blind]].

[[/folder]]

* When introduced Neji from ''Manga/{{Naruto}}'' has a beef with his cousin Hinata for being the daughter (and thus, heir) of the main Hyuga branch (while Neji is in the branch family but is generally stronger than Hinata). He softens after Naruto beats him in the Tournament Arc, though. They eventually become close friends [[spoiler:and Neji undergoes a HeroicSacrifice for Hinata]].

* In the source material of ''Manga/CardcaptorSakura'', Chihiro and Yamazaki have the PuppyLove version of BelligerentSexualTension, with Chihiro often acting violent whenever he enraged her. In the Nelvana dub [[RelatedInTheAdaptation the two were retooled into cousins]], turning their dynamic into rivalrous cousins instead.

* The longstanding enmity between "Black Tom" and [[ComicBook/XMen Sean "Banshee" Cassidy]] is not diminished by their being cousins and having grown up together.

* Arrow and Rudolph from ''WesternAnimation/RudolphTheRedNosedReindeer1998'' are enemies and cousins (as shown by throwaway lines showing that their fathers are brothers). Arrow is TheBully who teases Rudolph for his unusual nose. They're also pining after the same doe -- Zoey.
* This is implied in ''WesternAnimation/TheLionKingIISimbasPride''. Nuka and Vitani are two lions raised in the Outlands after being banished from the Pridelands as young cubs. Their parentage is never confirmed, but it's implied that they're Scar's children (thus making them Kiara's first cousins once removed). Kovu is explicitly adopted by Scar (and possibly by Zira as well). The Outlanders are enemies of the Pridelanders [[spoiler:until undergoing a group-wide HeelFaceTurn near the end]].

* The titular protagonist of ''Literature/HorridHenry'' and his cousin Steve loathe each other's company, to the point of Henry scaring Steve out of his bedroom in order to get out of sleeping in his aunt's attic. This forms a tit-for-tat war between them whenever they meet at family reunions.
* Inverted in ''[[Literature/{{Fudge}} Fudge-a-Mania]]'', when Peter and his rival Sheila become (step)cousins due to [[DecemberDecemberRomance his grandmother marrying her grandfather]].

* ''Literature/TheForsyteSaga'': Young Jolyon is a rebellious artist with a liberal political mindset, who loves to defy the rules of the high society and the traditions of the Forsyte family. But his cousin Soames is an uptight solicitor with a conservative political mindset, who believes that being rich and respectable is the key to both success and happiness. Of course, things become even ''worse'' between them after Soames's wife starts an affair with Jolyon. But they didn't like each other before that happened either.
* ''Literature/EarthsChildren'': Ayla and Broud are technically adopted cousins, though they never refer to each other as such, and both view the other as their {{Archenemy}}. Broud develops an IrrationalHatred of Ayla for unintentionally overshadowing his transition into adulthood and not fitting in easily; Ayla hates him for being arrogant and entitled, not seeing why she should have to be at his beck and call simply because he's the future leader, which further inflames his resentment. Broud physically  and psychologically bullies Ayla for years, and eventually begins [[RapeAsDrama sexually abusing her]]; it's made clear he isn't doing it out of lust as he finds her ugly, but because he enjoys dominating and hurting her. He gives up when she stops fighting him and doesn't outwardly let it bother her. He eventually [[spoiler:has her cursed with death for arbitrary reasons (which he'd wanted to do for years)]], though she manages to humiliate him and declares that [[spoiler:he can never make her die]].
* ''Literature/TheDarkArtifices'': Cameron Ashdown is a DoggedNiceGuy who is pro-Downworlder. This brings him into conflict with his cousin, Vanessa, a {{Jerkass}} member of the Cohort, a virulent anti-Downworlder faction within the Clave.

* In ''Series/HowToBeIndie'', Indie's SitcomArchNemesis is her 'evil cousin' Rubi, who is constantly one-upping her.
* ''Series/{{Supernatural}}'': Sam and Dean Winchester are the perfect, pre-destined blend of one elite hunting family line and one family line of world class scholars of the supernatural. However, in the Supernatural world, hunters and Men of Letters don't get along and despite their last name, their hunter genes actually come from their mother's side, the Campbells. When the Campbell clan resurfaces in season 6 (mostly, second and third cousins of Sam and Dean), they have a deep disdain for both brothers. This ultimately leads to bloodshed, although this may be primarily because [[spoiler:the season 6 Campbells are almost all demon-possessed]]. However, it is shown in season 4 flashback episodes that Samuel Campbell never approved of Mary and John's marriage (Sam and Dean's parents) because John wasn't from a hunting family. Also when, [[spoiler:Henry]] Winchester appears in a season 8 episode, he's appalled to find out that his grandsons are hunters instead of scholarly Men of Letters.

* ''Series/ThatsSoRaven'': In a first season episode called "Dissin' Cousins," the show's TitleCharacter is revealed to have a rich and beautiful (but also mean and snobby) cousin named Andrea who lives in Europe and gets to travel to all kinds of exotic places all over the world--Raven's friend, Eddie, also has this huge crush on Andrea. In the end, Raven and Andrea manage to patch things up when their relationship turns out to be a case of MutualEnvy--Andrea explains to Raven that even though she has the chance to live in Europe and travel to all kinds of exotic places, she hates having to move around so much and has always been secretly envious of Raven's much more "normal" life (it's unknown if Andrea knows about Raven's PsychicPowers).
* Taken to the logical extreme in ''Series/AlmaGemea'': Cristina and Luna aren't just clashing, they're ''mortal enemies''. Initially, the hatred is one-sided from Cristina's part: she is very jealous of Luna for marrying Rafael, the love of her life, and for receiving the family jewels instead of her (who is the oldest cousin), making her feel like TheUnfavourite. Cristina is indirectly responsible for Luna' death, as she is killed by Guto, who Cristina sent to rob the jewels. After Luna [[{{Reincarnation}} reincarnates]] as Serena, not only does Cristina's hatred for her cousin rekindle, but their conflict is no longer one-sided, and it gets progressively worse throughout the story, with Cristina trying to get Serena killed multiple times. She also still bears a huge grudge against Luna, who she blames for Rafael having no desire for her, prompting her to attack [[ShrineToTheFallen Luna's atelier]] several times, madly yelling at the dead woman.

* ''Series/DowntonAbbey'': Mary and Matthew are distant cousins and do ''not'' like each other when they first meet, as Matthew is poised to inherit Mary's family home and fortune (which Mary sees as her right) while Matthew is attracted to Mary but thinks that she's a snob. They eventually warm to each other considerably, but circumstances prevent them from acting on their feelings. As well, Matthew's mother Isobel doesn't get along with Mary's mother Cora or grandmother Violet at first, though they also mellow out as the series progresses. In the first two seasons, the main Crawley branch calls Matthew and Isobel "Cousin Matthew/Isobel" and vice versa, but the two Crawley branches drop this as they become closer.

* Zigzagged with Marie and Callie from ''Franchise/{{Splatoon}}''. In their personal lives, they have a close, sisterly bond filled with lighthearted teasing (maybe that's why Squid Sisters is their stage name). In the first game, though, they're always on rival teams due to being the hosts of Inkopolis News. It's usually all in good fun, but during the Christmas 2015 Splatfest, Callie goes off-script and calls out Marie for her rude and sarcastic behavior, stunning her into silence.
--> '''Marie:''' I'm PLENTY nice, you know! I care about-\\
'''Callie:''' Yourself? Winning? Insulting me on live TV?
* In ''VideoGame/PokemonGoldAndSilver'', Clair, the eighth and strongest gym leader, has a [[UnknownRival one-sided rivalry]] with her cousin Lance, the game's Champion. Since SecondPlaceIsForLosers she refuses to give up trying to beat him, though off the battlefield they've got a pretty good relationship.

* In ''VideoGame/FireEmblemEchoesShadowsOfValentia'', [[spoiler:Alm]] fought against his distant cousin [[spoiler:Berkut]] for several occasions. However, they didn't know about their familiarity until the final act.

* [[spoiler:Lily]] and [[spoiler:Shizune]] from ''VisualNovel/KatawaShoujo'' are revealed in both of their arcs to be cousins. They get along poorly due to their contrasting personalities. It doesn't help that they can't communicate well due to [[spoiler:Shizune being deaf and Lily being blind]].

* ''WesternAnimation/Ben10'': Ben and Gwen have an antagonistic relationship and are always trading insults. Unless one of them is in trouble, in which case the other one will do whatever it takes to help.
* ''WesternAnimation/LiloAndStitchTheSeries'' has Stitch going around fighting and befriending his "cousins" (though being created by the same person makes them closer to siblings). In particular, Experiment 625 remained Stitch's enemy until he underwent a HeelFaceTurn in [[WesternAnimation/LeroyAndStitch the finale]].
* In the ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' episode aptly-titled "Clash of the Cousins", Jimmy has an antagonistic relationship with his cousin [[EnfantTerrible Eddie]], who is trying to destroy the Neutron family in order to get their money for himself.
* In ''WesternAnimation/{{Rugrats}}'', one-year-old Tommy Pickles has an antagonistic relationship with his three-year-old cousin, Angelica, who regularly calls him and his friends "dumb babies" and bosses them around.
* In ''WesternAnimation/PhineasAndFerb'', Ferb has several cousins from England who are convinced that living in America has made him less British. This prompts a competitive game of soccer/football between the boys, along with their friends.
%%* ''WesternAnimation/MiraculousLadybug'' has the rivalling cousins Adrien and Felix.
* In ''WesternAnimation/{{Mixels}}'', royal cousins Camillot and Mixadel are pitted against each other, primarily one-sided, thanks to Mixadel disapproving of Camillot taking to the "common Mixels" so fast.

* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', Babs Seed is a bully to her cousin Apple Bloom. However, Babs later has a HeelFaceTurn and the two become friends.
* Superman and Supergirl in ''WebAnimation/DCSuperHeroGirls'' are cousins as in most versions, and while they're not enemies, Supergirl feels some resentment due to constantly being compared to him and expected to be like him.
* In ''WesternAnimation/ReadyJetGo'', Jet's cousin Zerk likes to annoy him and compete with him. Not to mention that Zerk constantly makes speciesist remarks towards Jet's human friends. They seem to get along better in Season 2.

* This trope often happens to WesternAnimation/{{Donald|Duck}} in ''ComicBook/DisneyMouseAndDuckComics'', most often with lucky {{jerkass}} Gladstone Gander and bothersome {{beatnik}} Fethry Duck.

-> '''Marie:'' I'm PLENTY nice, you know! I care about-\\

* Marie and Callie from ''VideoGame/{{Splatoon}}'' usually avert this by having a good relationship (even with a lot of teasing between the two). However, during Splatfest they are on rival teams. It's usually all in good sportsmanship but during the Christmas 2015 Splatfest Callie called out Marie for her rude and sarcastic behavior (and it was implied to not be staged).

* ''Series/{{Cousins For Life}}'' When 12-year-old cousins Ivy and Stuart live under the same roof, they make a good team together, despite their strongly dissimilar lifestyles. Just the same, they are not without clashes.

''(While Ivy and Stuart are getting smoothies at the local juice bar, Juiced Up, a 16-year-old girl named Natalie notices Ivy, and she excitedly approaches her)''

--> '''Natalie:''' Ivy? From Ivy Cares?

--> '''Ivy:''' After you! I mean, yes.

--> '''Natalie:''' I'm Natalie; huge fan. That clean water campaign where you didn't shower for a month was pure ''wow!''

--> '''Ivy:''' That's what people said whenever I walked into a room; "wow".

--> '''Natalie:''' I'm...so excited I ran into you, Ivy. Ivy Cares inspired me to make a difference; so, I'm raising money for a local kids' charity. Doing the right thing ''rules!''

''(Stuart returns to Ivy with the smoothies)''

--> '''Stuart ''(to Natalie)'':''' I'm guessing you got the energy boost in your smoothie?

--> '''Natalie:''' No...those get me too hyped up.

--> '''Ivy:''' Natalie, this is my cousin, Stuart. And I think it's a great idea that you want to raise money for kids. If you need anything, I'd love to help.

--> '''Natalie:''' Really? ''Then would you raise an Ivy Cares drive to help me raise $5,000 in donations; please say yes, 'cause I talk really fast when I'm worked up, and I think I'm running out of air!''

--> '''Ivy:''' Of course, uh...breathe now.

--> '''Natalie ''(panting)'':''' O. M. Charity; thank you! Let me D. M. you my info, so we can plan. Bye!

--> '''Ivy:''' Bye.

''(Natalie skips away; Stuart stares at Ivy while slurping the last of his smoothie)''

--> '''Ivy:''' Why are you slurping at me like that?

--> '''Stuart:''' You're too nice.

--> '''Ivy:''' What's wrong with being nice?

--> '''Stuart:''' You just offered to raise thousands of dollars for a stranger. It's like you're ''giving'' money away.

--> '''Ivy:''' I run a charity; that's literally ''what'' I do.

--> '''Stuart:''' In that case...could I have 20 bucks to buy the new "Zombie Shredder, Flame Thrower" expansion pack?

--> '''Ivy:''' No; see, ''you'd'' be using the money on ''yourself''. ''Natalie'' is using the money to help the less ''fortunate''.

--> '''Stuart:''' Hey, I ''am'' less fortunate.

''(Ivy stares at him in disbelief)''

--> '''Stuart:''' Than other people who have the new "Zombie Shredder, Flame Thrower" expansion pack.

''(Ivy shakes her head)''