Eomer: Also called Éadig. Born in TA 2991, he was the son of Éomund and Théodwyn, the king's sister. He was the nephew of the King Théoden, and like nearly all of his race was tall, strong and golden-haired. He had a younger sister, Éowyn.
Before the War of the Ring, Éomer was a Marshal of the Riddermark, but through his friendship with Gandalf and his concern about the evil influences of Gríma, the king's advisor, Éomer fell out of favour.
He fought bravely and with distinction at the Battle of the Hornburg, the Battle of the Pelennor Fields and before the Black Gate of Mordor.
Before Théoden died, he named Éomer his heir. He became the eighteenth King of Rohan and ruled until the year 63 of the Fourth Age. In 3020 of the Third Age, he married Princess Lothíriel of Dol Amroth, who soon after bore his son and heir, Elfwine the Fair.