Taken from GOT wiki: Sansa Stark is a major character in Game of Thrones. She is played by starring cast member Sophie Turner and débuts in the first episode of the first season. She is betrothed to King Joffrey Baratheon. She adopted the direwolf Lady but Lady was executed following a dispute between Joffrey and Sansa's sister Arya. She was initially thrilled at her betrothal but has since experienced Joffrey's cruelty and watched the execution of her father Eddard Stark on his orders. She is a captive of House Lannister in King's Landing.