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Catherine of Braganza was Portuguese, born in Vila Viçosa, Portugal, on November 25, 1638, to King John IV and Luisa de Guzman, Duchess of Braganza. She was a member of the Braganza dynasty, a royal Portuguese house that ruled Portugal from 1640 to 1910. Catherine's marriage to King Charles II of England in 1662 was part of a political alliance between England and Portugal.