Gilgalad
Gil-galad, born Ereinion, is a central figure in J.R.R. Tolkien's legendarium. He is commonly described as the last High King of the Noldor in Middle-earth, ruling during the later portion of the Second Age. The name Gil-galad is Sindarin and is frequently rendered as “star of radiance” or “radiant star,” though exact translations vary among sources. He led the Noldorin realms in exile in Lindon and played a pivotal role in the West’s defense against Sauron.
In the Second Age, Gil-galad formed the Last Alliance of Elves and Men with Elendil the Tall
His death shifted the balance of power toward Men, helping to shape the subsequent lineages of Arnor