Mariana Victoria of Portugal (or of Braganza; Portuguese: Mariana Vitória; full name: Mariana Vitória Josefa Francisca Xavier de Paula Antonieta Joana Domingas Gabriela de Bragança; Portuguese pronunciation: [m??i'?n?] or [m?'?i? '?n? vi't??i? ?u'z?f?]; 15 December 1768 – 2 November 1788) was a Portuguese Infanta (princess), the eldest daughter of Queen Maria I of Portugal and her king-consort, Infante Pedro of Portugal.