Abimelech was the king of Shechem and a son of biblical judge Gideon. His name can best be interpreted as "my father is king", claiming the inherited right to rule. He is introduced in Judges 8:31 as the son of Gideon and his Shechemite concubine, and the biblical account of his reign is described in chapter nine of the Book of Judges. According to the Bible, he was an unprincipled and ambitious ruler, often engaged in war with his own subjects.