In The Hobbit by JRR Tolkien, Rivendell, a city of elves, is ruled by Elrond. The party of adventurers are waylaid there until Midsummers Eve, but I noticed a small passage about Elrond.
The master of the house was an elf-friend - one of those people whose fathers came into the strange stories before the beginning of History, the wars of the evil goblins and the elves and the first men in the North. In those days of our tale there were still some people who had both elves and heroes of the North for ancestors, and Elrond the master of the house was their chief.
I know Elrond was sometimes called the 'half-elven'(as was pointed out in this question, and normally that would be that, but he appears fully elvish. For example, he appears to have an incredibly long life, as is evidenced by the above passage, and he noted his inability to act as the Elvish emissary in the Fellowship, because of his age and inability to leave, rather than because he was not fully Elvish. So, is he fully Elvish?