Gil-Galad

Gil-galad was the name associated with Ereinion, son of Fingon, after he ascended to become the last High King of the Elven kingdom of Noldor. He ruled in Lindon which was strong and secure against its enemies. Gil-galad had alliances with the Men of Westernesse, especially with the faithful. With Elendil he formed the Alliance of Elves and Men which was so powerful as to be compared to the army which destroyed Melkor at the end of the 1st Age. He reigned as High King throughout the 2nd Age until he was detroyed at the hands of Sauron. His famed weapon was a spear known as Aeglos and none could stand against it. Two of the three elven rings were in his possession and he gave them to Cirdan and Elrond.

In Elven Gil-galad means "Star of Radiance".

Source: "The Silmarillion", by J. R. R. Tolkien.