Isildur settled on the east bank of the Anduin and established the city of Minas Ithil (which would later be named Minas Morgul), as well as the province of Ithilien.
Isildur immediately took the hilt-shard of Elendil's sword, which had broken in the struggle against Sauron, and cut the One Ring from the hand of Sauron's mortal form.