Dracule Mihawk

Dracule "Hawk Eyes" Mihawk is a world-famous pirate who holds the title of "Strongest Swordsman in the World". He was one of the Seven Warlords of the Sea, the first revealed and formally introduced, until the group's dissolution. His place of residence is Kuraigana Island, on which he served during the two-year timeskip as Roronoa Zoro's master in his swordsmanship training.