Joshua 13:21-22

all the cities of the plain and all the kingdom of Sihon king of the Amorites, who reigned in Heshbon, whom Moses had struck with the princes of Midian: Evi, Rekem, Zur, Hur, and Reba, who were princes of Sihon dwelling in the country. The children of Israel also killed with the sword Balaam the son of Beor, the soothsayer, among those who were killed by them.