Elves of Eressëa

From Tolkien Gateway

The Elves of Eressëa were the Elves who dwelt on the island of Tol Eressëa in the Bay of Eldamar. The Vanyar and the Noldor were taken to Aman on that island, but the first Elves to remain there for any time were the Teleri, who lived on the island long after it was anchored off the coasts of Aman. After a while, though, the Teleri left, to dwell on the strands of the Blessed Realm itself, and especially at the haven of Alqualondë.

After the War of Wrath at the end of the First Age, Tol Eressëa was again peopled with Elves, by the exiles returning from Middle-earth who settled there. Their shoreland city was at Avallónë, and they built up a great friendship with the Númenóreans, at least during the early part of the Second Age.