Kíli
From Tolkien Gateway
Kíli was the twin brother of Fili and nephew of Thorin II Oakenshield, who accompanied him on the Quest of Erebor, and was slain at his side in the Battle of Five Armies.
Kíli was the twin brother of Fili and nephew of Thorin II Oakenshield, who accompanied him on the Quest of Erebor, and was slain at his side in the Battle of Five Armies.