Arslan's reaction when Bahman inadvertently reveals that Arslan is not of royal blood. The poor boy's entire world was shattered so quickly just like that.
Mahendra and Bahman's deaths. Both Jaswant and Arslan are holding their respective loved ones and desperately begging them to not leave them and to tell them who they are (Jaswant wanting to know if Mahendra is his biological father, Arslan wanting to know who he is, if he is not of royal blood).
Irina's retainers explaining the backstory of Maryam's royal family. The king and queen were murdered by Bodin and his Templars. Irina and her sister fled but were eventually discovered. Militsa, being badly injured, chose to stay behind to buy Irina time to escape. Her and the remaining soldiers stayed and fought to the bitter end, ending with Militsa throwing herself off the tower when the enemy broke through their final defense.
