John IV of Portugal

John IV Of Portugal

John IV (Portuguese: João IV de Portugal, ; 18 March 1603 – 6 November 1656) was the King of Portugal and the Algarves from 1640 to his death. He was the grandson of Catherine, Duchess of Braganza, who had in 1580 claimed the Portuguese crown and sparked the struggle for the throne of Portugal. John IV was nicknamed John the Restorer (João o Restaurador). On the eve of his death in 1656, the Portuguese Empire reached its zenith, spanning almost 3,000,000,000 acres (12,000,000 km2).