Eärendil, the son of Cemendur, was the 5th King of Gondor, and ruled over his country for 86 years. He also shared his name with Eärendil the Mariner.

Three years after Eärendil of Gondor took control over Gondor, Arwen, the daughter of Elrond was born. Almost 3000 years after, Arwen wed Aragorn - a distant descendant of Eärendil of Gondor's ancestor Elendil.
Encyclopedia entry originally written by Vulkhan