Description:
Tarondor was the son of Tarcil, and became the seventh king of Arnor at his father's death. He assumed the throne at the age of 143.
Lord of the Rings: Return of the King Appx. A Part I Section ii "The Realms in Exile" HoME 12: The Peoples of Middle-earth Part 1 “VII The Heirs of Elendil”