Luísa, Duchess of Cadaval Portuguese duchess (1679-1732) (1679–1732) Parents Peter II of Portugal Children Siblings John V of Portugal Infante Francisco, Duke of Beja Francisca Josefa of Portugal Miguel de Bragança João of Braganza, Prince of Brazil Joseph, Archbishop of Braga Infanta Teresa of Portugal Infante António of Portugal Infanta Isabel Luísa of Portugal Infante Manuel, Count of Ourém Partners Jaime Álvares Pereira de Melo, 3rd Duke of Cadaval Luís Ambrósio Pereira de Melo