Alfonso VII of León and Castile
Adelaide was the daughter of Count Humbert II of Savoy and Gisela of Burgundy. Adelaide's older brother Amadeus III succeeded their father as count of Savoy in 1103. Adelaide had the same name as her paternal great-grandmother Adelaide of Susa, ruler of the March of Turin, and her second cousin, Adelaide del Vasto, queen of Jerusalem. Through her father, Adelaide was also related to Emperor Henry V. On her mother's side, Adelaide's relatives included her uncle Pope Callixtus II, who visited Adelaide at court in France, and her first cousin King Alfonso VII of León and Castile.