Beorn was a Northman Lord and was founder of the tribal confederation which was later known as the Beornings. He was the first of the three enchanted Chieftains of the great Cult of the Bear. Beorn was born the son of Bera and Ides, two descendants of the ancient Men of the Misty Mountains.He later married the young Woodwoman Medulynn (whom he called "Beo") and became the father of Grimbeorn, who led the Beornigs in the late Third Age.