He ascended the throne of Arnor in 249 T.A. on the death of his father Valandil , he was the grandson of Isildur.
He should not be confused with his more famous namesake, Eldacar of Gondor.
His reign was without any event and he died in 339 T.A. and was succeeded by his son Arantar[?].
wikipedia.org dumped 2003-03-17 with terodump