 Arwen eventually became Queen of the Reunited Kingdom of Arnor and Gondor when she married Aragorn, who was of the line of the Kings of Arnor.By Arwen and Aragorn's marriage, the long-sundered lines of the Half-elven were joined.Their union also served to unite and preserve the bloodlines of the Three Kings of the High Elves (Ingwë, Finwë, and the brothers Olwë and Elwë) as well as the only line with Maiarin blood through Arwen's great-great-great grandmother, Melian, Queen of Doriath, and also on Aragorn's side, through the line of kings of Arnor and Númenor to Elros, Elrond's brother, whose great-great-grandmother was also Melian.