Elu Thingol was an Elf of the Teleri during the First Age. His brother was Olwë, who became the Lord of Alqualonde, Lord of Tol Eressëa, and High King of the Teleri of Aman, both of whom may have had a second brother called Elmo. He was a good friend of Finwë, the first High King of the Ñoldor during the times before the elves reached Aman. He was the founder and first King of the northern Elven Kingdom of Doriath and was respected by all the Sindar of the Beleriand, who considered him to be the High King of the Sindar and the Lord of Beleriand.