Judges 9:5-6

MLV(i) 5 And he went to his father's house at Ophrah and killed his brothers the sons of Jerubbaal, being seventy men, upon one stone, but Jotham the youngest son of Jerubbaal was left, for he hid himself.
6 And all the men of Shechem assembled themselves together and all the Beth-millo and went and made Abimelech king by the oak of the pillar that was in Shechem.