Huor was the younger son of Galdor and Hareth and the brother of Húrin Thalion. They were fostered in Brethil by their uncle Haldir for a time. At age thirteen, Huor and Húrin went to war against the Orcs; they were separated from their comrades and rescued by Ulmo. They stayed in Gondolin for a time before returning to Dor-lómin, where Huor wedded Rían of the First House of the Edain, and she bore him a son, Tuor. With his brother, Huor commanded the right wing of the army of Hithlum in the Union of Maedhros and held the Pass of Sirion during the Nirnaeth Arnoediad; though he fought valiantly, he was struck in the eye by a poisoned arrow.