Jephthah the Gileadite was a mighty warrior. His father was Gilead; his mother was a prostitute.
References for Judges 11:1
Gilead’s wife also bore him sons, and when they were grown up, they drove Jephthah away. “You are not going to get any inheritance in our family,” they said, “because you are the son of another woman.”
So Jephthah fled from his brothers and settled in the land of Tob, where a gang of scoundrels gathered around him and followed him.
References for Judges 11:3