Dom Peter III, nicknamed the Builder, was King of Portugal from 24 February 1777 to his death in 1786, by marriage to his niece Queen Dona Maria I.
Portrait, c. 1777–1786
Effigy of Maria I and Peter III, 1785
Dom John VI, known as "the Clement", 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 Brazi
Peter III of Portugal
…Portugal in right of his wife, after the delivery of his first born child. They had six children, of whom the eldest surviving son succeeded Maria as John VI of Portugal on her death in 1816. Peter made no attempt to participate in government affairs, spending his time hunting or in religious exercises…
Portrait of Dom John as Infante, aged 5–6, attributed to Cirilo Volkmar Machado, 1773
Portrait of John as Prince of Brazil by Giuseppe Troni, c. 1788
The Prince Regent of Portugal, Dom John, with a bust of his mother, Dona Maria I (Sequeira, 1802)