His sister Helaena Targaryen (Phia Saban) and mother Alicent are appalled at what he's done, and even more so when he demands Helaena take flight on her dragon Dreamfyre to aid in the war.

Warning: Major spoilers ahead for "House of the Dragon" season two finale and the book "Fire and Blood." Rhaenyra Targaryen and her biggest rival, Alicent Hightower, form a pact to take over the ...