Eofor
From Tolkien Gateway
Eofor was a man of Rohan, and was the third son of king Brego. He also had two older brothers, Baldor and King Aldor.
He lived in town of Aldburg and his descendants were the Lords of Aldburg.
He was also the ancestor of Éomund Éomer and Éowyn.
Etymology
The name means "boar" in Old English
References
J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth