Deuteronomy 3:13-14

13Then I gave the rest of Gilead and all of Bashan—Og’s former kingdom—to the half-tribe of Manasseh. (This entire Argob region of Bashan used to be known as the land of the Rephaites.

14Jair, a leader from the tribe of Manasseh, conquered the whole Argob region in Bashan, all the way to the border of the Geshurites and Maacathites. Jair renamed this region after himself, calling it the Towns of Jair, as it is still known today.)