History Main / HeirInLaw

* In a vaguely posthumous example, the pagan (or possibly Orthodox) Didysis Kunigaikštis (Grand Duke) [[https://en.wikipedia.org/wiki/W%C5%82adys%C5%82aw_II_Jagie%C5%82%C5%82o Jogaila Algirdaitis of Lithuania]] was baptized into the Catholic Church as Władysław at age 24 (minimum), married off to Królowa [[SheIsTheKing (King)]] [[https://en.wikipedia.org/wiki/Jadwiga_of_Poland Jadwiga Andegaweńska]] (who was [[AChildShallLeadThem 12, max]]), and ruled Poland for the rest of his life; outliving both Jadwiga who [[DeathByChildbirth survived her only child by mere days]] but the latter's second cousin Anna of Cilli (a fellow great grand-child of Polish King [[https://en.wikipedia.org/wiki/W%C5%82adys%C5%82aw_I_%C5%81okietek Władysław I Łokietek]]) and ''her'' offspring. And his third wife, Elżbieta Granowska. It was the wife number ''four'', Sofja/Sonka, born to the Ruthenized Ltithuanian house of Alšėniškiai/Гальшанскі, from whom the Jagiellonian dynasty traced their descent.

* In a vaguely posthumous example, the pagan (or possibly Orthodox) Didysis Kunigaikštis (Grand Duke) [[https://en.wikipedia.org/wiki/W%C5%82adys%C5%82aw_II_Jagie%C5%82%C5%82o Jogaila Algirdaitis of Lithuania]] was baptized into the Catholic Church as Władysław at age 24 (minimum), married off to Królowa [[SheIsTheKing (King)]] [[https://en.wikipedia.org/wiki/Jadwiga_of_Poland Jadwiga Andegaweńska]] (who was [[AChildShallLeadThem 12, max]]), and ruled Poland for the rest of his life; outliving both Jadwiga who [[DeathByChildbirth survived her only child by mere days]] but the latter's second cousin Ana Celjska (a fellow great grand-child of Polish King [[https://en.wikipedia.org/wiki/W%C5%82adys%C5%82aw_I_%C5%81okietek Władysław I Łokietek]]) and ''her'' offspring. It was wife number four Sofja/Sonka, born to the Ruthenized Ltithuanian house of Alšėniškiai/Гальшанскі, from whom the Jagiellonian dynasty traces their decent.

** William III became King of England, Scotland, and Ireland through his marriage to Mary II, initially as co-monarch rather than sole monarch. However, he continued to rule after her death rather than make way for her heirs, as he would have done had he just been a consort. It probably helped that William was also the next male in the line of succession as Mary's [[KissingCousins first cousin]], and that he took the throne in what was essentially a coup d'etat (Parliament basically issued him a very polite engraved invitation to come and "invade" the country, as they didn't like his uncle/father-in-law King James II setting up a Catholic dynasty).

*** At the same time, it was made clear his children would only succeed if they were also ''Mary's'' children; if they failed to have children or their children predeceased them (which they did), the throne would (and eventually did) pass to Mary's sister, Anne, even if William had remarried and had children by another wife (though he never did) because Anne, plus any surviving children she had (as it happens, they all predeceased both her and William) would have still been considered higher in the succession (as Mary's sister and nephews/nieces) than any child of William's by another woman (who would be her first cousins-once-removed).

* Francis I, who was the Duke of Lorraine and Bar and the Gran Duke of Tuscany, officially became the Holy Roman Emperor and Archduke of Austria after marrying Maria Theresa in 1745. It was decided that Salic Law prevented a female ruler of the Holy Roman Empire which led to the War of Austrian Succession. To resolve the conflict, Maria Theresa married Francis and he was elected Emperor. In reality, Maria Theresa was the ruler, and she is remembered as Empress while Francis is mentioned less often.

* Because Tendo Soun from Creator/RumikoTakahashi's ''Anime/RanmaOneHalf'' has only three daughters and no sons, there is a danger that his fine dojo will become nothing more than a legacy holding to his sons-in-law. This is his principal reason for advocating the courtship of his youngest daughter Akane to his old friend's son, Saotome Ranma: Ranma is an accomplished martial artist who would have a keen interest in keeping a thriving dojo.