Mjosgard Donquixote

Saint Mjosgard is a World Noble who visited Fishman Island eight years before the start of the series.

After an attempt to recapture his freed fish-man slaves went awry, Mjosgard met Queen Otohime of Fish-Man Island's Ryugu Kingdom and became their ally and a supporter of their efforts to integrate with humans, opposing the extreme racism typically associated with the World Nobles' normal ideology. He is later revealed to be a member of the Donquixote Family.

During the most recent Levely, he would directly oppose other World Nobles from threatening Otohime's family, which resulted in his execution.

First Appearance: Chapter 625

(Source: Wikia)