Heladil (S.A. 1000 - T.A. 3019) was a Silvan elf who was the son of Arafel, the nephew of Thranduil, King of Mirkwood's Wood-elves, and cousin to Lindariel, Legolas Greenleaf, and Faelwen. Heladil commanded a nine-elf unit—an Uialcu (S. "Twilight Bows")—of elite warriors. He was well-loved by those under him; his strength and valor in battle were matched by an equal measure of wit and lighthearted merriment. Heladil was slain in the Battle under the Trees, in T.A. 3019, when Sauron's forces in Dol Guldur marched northward to assail Thranduil's realm.