After he had slain Sihon the king of the Amorites, which dwelt in Heshbon, and Og the king of Bashan, which dwelt at Astaroth in Edrei:

This was after he had defeated Sihon king of the Amorites, who lived in Heshbon, and then at Edrei had defeated Og king of Bashan, who lived in Ashtaroth.