José, Prince of Brazil in the context of "Maria I of Portugal"

Dom John VI (Portuguese: João Maria José Francisco Xavier de Paula Luís António Domingos Rafael; 13 May 1767 – 10 March 1826), known as "the Clement" (o Clemente), was King of the United Kingdom of Portugal, Brazil and the Algarves from 1816 to 1825, and after the recognition of Brazil's independence, titular Emperor of Brazil and King of Portugal until his death in 1826.

John VI was born in Lisbon during the reign of his maternal grandfather, King Dom Joseph I of Portugal. He was the second son of the Princess of Brazil and Infante Peter of Portugal, who later became Queen Dona Maria I and King Dom Peter III. In 1785, John married Carlota Joaquina of Spain, with whom he had nine children. He became heir to the throne when his older brother, Prince José, died of smallpox in 1788. Before his accession to the throne, John bore the titles Duke of Braganza, Duke of Beja, and Prince of Brazil. From 1799, he served as prince regent due to his mother's mental illness. In 1816, he succeeded his mother as monarch of the Portuguese Empire, with no real change in his authority, since he already possessed absolute powers as regent.