Joseph I of Portugal
João Maria José Francisco Xavier de Paula Luís António Domingos Rafael was born 13 May 1767, during the reign of his maternal grandfather and paternal uncle Joseph I of Portugal. He was the second son, paternal cousin, and nephew by marriage of the future Queen Maria I, Joseph's daughter (also his sister in law), and her husband (also her paternal uncle), the future King Peter III. At the time of John's birth they were, respectively, Princess of Brazil and Infante of Portugal.