How old is eldarion? Eldarion was the son of Arwen and Elessar . Eldarion was born in the first year of the Fourth Age. He did not inherited the choice of becoming an Elf, but had a long youth like one, having an appeareance of 20 years old until 60.Who played eldarion in the lord of the rings? Eldarion in The Lord of the Rings: The Return of the King 2003: The Lord of the Rings: The Return of the King: While Arwen is on her way to the Grey Havens to leave Middle-earth and Aragorn, she has a vision of her future son, which persuades her to stay. The boy (not named until the credits) is played by Sadwyn Brophy, son of Jed Brophy.How did eldarion become the king? Eldarion was born in FO 1, and is recorded to have several sisters. He ascended to the throne upon the death of his father in FO 120. Next to nothing is known of his rule, except that he probably maintained the peace and the borders of the Reunited Kingdom as set down by his father after the War of the Ring.How is eldarion related to other elves? Eldarion was descended from several royal Elven houses, including the Three High Kings of the Elves, and from the Edain. He was a grandson of Elrond and, through his grandmother Celebrían, a great-grandson of Galadriel.