Prince Luís of Orléans-Braganza, nicknamed "the Perfect Prince", was the second son of Isabel, Princess Imperial of Brazil and Prince Gaston, Count of Eu, and patriarch of the Vassouras branch of the House of Orléans-Braganza. His maternal grandfather, Pedro II of Brazil, was the last emperor of Brazil. After being declared successor to the title of Head of the Imperial House of Brazil by his brother Pedro de Alcântara, Prince of Grão-Pará, following the latter's abdication to get married, Luiz ended up dying before his mother, Isabel, in 1920.

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