Sybilla was the daughter of Fulk V of Anjou[1] and Ermengarde of Maine,[2] In 1123, she married William Clito, nephew and rival of King Henry I of England.
[3] Sibylla brought the County of Maine to this marriage, which was annulled, narrowly, in 1124 on grounds of consanguinity.
The archbishop of Reims intervened and a truce was signed, but Thierry took vengeance on Baldwin when he returned in 1149.
In 1157 Sibylla travelled with Thierry on his third pilgrimage, but after arriving in Jerusalem she separated from her husband and refused to return home with him.
They supported the election of Amalric of Nesle as Latin Patriarch of Jerusalem over a number of other candidates.