Eldarion

Eldarion was the only son of Aragorn Elessar and Arwen Undómiel, the King and Queen of the Reunited Kingdoms of Gondor and Arnor.

He was born some time during the Fourth Age, many years after the War of the Ring. He had several, unnamed, sisters, and became King when his father gave up his life in the manner used by the old Kings of Númenor of old in the year FA 121.