Joshua 17:1, 5-6

There was also a lot for the tribe of Manasseh; for he was the firstborn of Joseph; to wit, for Machir the firstborn of Manasseh, the father of Gilead: because he was a man of war, therefore he had Gilead and Bashan.

And there fell ten portions to Manasseh, beside the land of Gilead and Bashan, which were on the other side Jordan; because the daughters of Manasseh had an inheritance among his sons: and the rest of Manasseh's sons had the land of Gilead.