Luiz I de Lancastre - Bef 15 Feb 1574 Parents Jorge de Lencastre, 2nd Duke of Coimbra Britez de Villena-Melo Children Luiz II de Lancastre Joao de Lancastre, 1.Commander Order of Avis at Coruche Siblings Afonso de Lencastre John of Lencastre, 1st Duke of Aveiro