His elder brother Hugh tried arrange a marriage between Ralph and Queen Isabella I and thereby raise him to the throne, after her husband Henry II of Champagne died.
This was rejected by the High Court because of his lack of wealth and instead King Aimery married her.
At his trial Ralph devised a defence from an interpretation of the assise sur la ligece based on the requirement of a judgment in court for cases concerning lords and their vassals.
Aimery refused and his vassals withdrew service from him following great words and Ralph went into banishment.
[2] He married Agnes de Grenier, daughter of Renaud, Lord of Sidon.