content: 
  === Lysa Arryn  ===
  Lysa Arryn, formerly of House Tully, is the second child and youngest daughter of Lord Hoster Tully. Enamored of Petyr Baelish, Lysa resented her older sister Catelyn Tully when he fell in love with her. Prior to the series, while Baelish was her father's ward, Lysa was impregnated by him after Catelyn spurned him. Learning of this, Hoster sent Baelish home and tricked Lysa into drinking an abortifacient potion, using her unborn child as proof of her fertility while marrying her off to Jon Arryn. Lysa has become a paranoid and an unstable, mercurial woman.
  Shortly before ''A Game of Thrones'', Baelish convinced Lysa to poison her husband and write a letter to Catelyn to name House Lannister responsible for the act. Fearing for herself and her son, Lysa returns to the Eyrie and becomes Lady Regent of the Vale. At the Eyrie, Lysa refuses House Stark's plea for assistance and commits the Vale to a strict policy of neutrality in the war. Lysa later accepts a marriage proposal from Baelish in ''A Storm of Swords''. After finding Baelish kissing Sansa Stark, Lysa attempts to throw her to her death, but Baelish saves Sansa by murdering Lysa.
  In the HBO television adaptation, she is portrayed by Kate Dickie.