Legolas was the son of Thranduil, King of the Woodland Realm of Northern Mirkwood, who appears as the Elvenking in The Hobbit. Thranduil ruled over the Silvan Elves or Wood-elves of Mirkwood. Although he lived among the Silvan Elves, Legolas was not one himself.His father Thranduil had originally come from Lindon; he and his son were actually Sindar, or Grey Elves, called in the singular Sinda;  Sindarin  was their language.Thranduil himself was the son of Oropher. Legolas's mother is never mentioned; the Elves of Mirkwood have no Queen at the time of The Hobbit.is father Thranduil had originally come from Lindon; he and his son were actually Sindar, or Grey Elves, called in the singular Sinda;  Sindarin  was their language. Thranduil himself was the son of Oropher. Legolas's mother is never mentioned; the Elves of Mirkwood have no Queen at the time of The Hobbit.