Judges 8:31
His mistress in Shechem bore him a son whom he named Abimelech.
Genesis 16:15
Hagar eventually gave birth to Abram's son. Abram named his son whom Hagar bore Ishmael.
Genesis 20:2
because Abraham kept saying about his wife Sarah, "She is my sister," King Abimelech of Gerar summoned them and took Sarah into his household.
Genesis 22:24
Also, his concubine Reumah gave birth to Tebah, Gaham, Tahash, and Maacah.
Judges 9:1-5
Then Jerubbaal's son Abimelech went to his mother's relatives in Shechem. He spoke to the entire family of his mother's father, telling them,
Judges 9:18
"But now as for you, you've rebelled against my father's house today. You've murdered his sons 70 men in one place, and you've installed Abimelech, the son of his mistress, as king to rule over the "lords" of Shechem, since he's related to you.