'Ancestor' in the Bible

Then Ebed's son Gaal remarked, "Who is this Abimelech? And who is Shechem? Should we serve him? Isn't he Jerubbaal's son? Isn't Zebul his lieutenant? Serve the men of Hamor, Shechem's ancestor but why are we serving him?

They renamed the city Dan, after the name of their ancestor Dan, who had been born in Israel. The former name of the city was Laish.