The territory of King Og of Bashan, one of the few remaining Rephaites, ¹  who lived ²  in Ashtaroth and Edrei

the whole kingdom of Og in Bashan, who ruled in Ashtaroth and Edrei. (He was one of the few remaining Rephaites.) ¹  Moses defeated them and took their lands. ² 

Only King Og of Bashan was left of the remaining Rephaites. (It is noteworthy ¹  that his sarcophagus ²  was made of iron. ³  Does it not, indeed, still remain in Rabbath ⁴  of the Ammonites? It is thirteen and a half feet ⁵  long and six feet ⁶  wide according to standard measure.) ⁷ 

So the king summoned the Gibeonites and spoke with them. (Now the Gibeonites were not descendants of Israel; they were a remnant of the Amorites. The Israelites had made a promise to ¹  them, but Saul tried to kill them because of his zeal for the people of Israel and Judah.)