Balin:

One of the twelve dwarves who accompanied Thorin on the quest for Smaug's treasure, Balin survived the Battle of the Five Armies, and later visited Bilbo in Hobbiton. Sometime between the end of the Quest of Erebor, and the beginning of the War of the Ring, Balin led an expedition to Moria to attempt to recolonize it. It was unsuccessful and all the Dwarves died.