Rosinante Donquixote, also known as Corazon, is a former Marine Commander and the younger brother of the infamous pirate Donquixote Doflamingo in the anime series One Piece. Despite being born into the notorious Donquixote family, Rosinante is a kind-hearted and compassionate individual. He goes undercover in Doflamingo's crew to thwart his brother's evil plans. As Corazon, he forms a deep bond with Trafalgar Law, whom he tries to save from the cruel world of pirates. Rosinante's selfless actions and tragic fate leave a lasting impact on the series.