Eöl the Dark Elf
Eol was born and raised in Doriath with Thingol. He decided he loved the woods and went to dwell in Nan Elmoth Forest. He met Aredhel and they were wed and had a son, Maeglin. One day, Eol left to feast with the dwarves. He returned to find Aredhel and Maeglin gone, and he followed them to the for called Brithiach. Eol followed them to Gondolin, where he was halted at the gates and captured and brought before King Turgon. Since Gondolin was hidden, Eol was not allowed to leave. He decided to die, and he killed his wife Aredhel to. Maeglin later joined with Morgoth.