31 half of Gilead, and Ashtaroth and Edrei (the royal cities of Og in Bashan). This was for the descendants of Makir son of Manasseh—for half of the sons of Makir, according to their clans.

Read Joshua 13:31 Using Other Translations

And half Gilead, and Ashtaroth, and Edrei, cities of the kingdom of Og in Bashan, were pertaining unto the children of Machir the son of Manasseh, even to the one half of the children of Machir by their families.
and half Gilead, and Ashtaroth, and Edrei, the cities of the kingdom of Og in Bashan. These were allotted to the people of Machir the son of Manasseh for the half of the people of Machir according to their clans.
It also included half of Gilead and King Og’s royal cities of Ashtaroth and Edrei. All this was given to the clans of the descendants of Makir, who was Manasseh’s son.