

A physically and politically weakened king whose turbulent reign saw Portugal's independence secured but ended with his overthrow by his own brother.
Afonso VI's ascent to the Portuguese throne at age 13 was shadowed by infirmity; a childhood illness left him partially paralyzed and with significant learning difficulties. His early reign was dominated by his formidable Spanish mother, Luisa de Guzmán, who acted as regent. In a dramatic palace coup at 19, aided by the ambitious Count of Castelo Melhor, Afonso seized power, sending his mother to a convent. His reign, dubbed 'the Victorious,' was defined by the successful conclusion of the Restoration War against Spain, which finally secured Portugal's independence in 1668. Yet Afonso's personal life was a source of scandal and political vulnerability. A disastrous marriage to the French princess Marie Françoise was annulled, and his inability to govern effectively led to a conspiracy. In 1667, his younger brother, the future Pedro II, engineered a coup, stripping Afonso of power and eventually confining him to the Azores and then Sintra, where he lived out his days a prisoner-king.
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The illness that affected him in childhood is believed by some historians to have been a severe case of measles or encephalitis.
He was a patron of the composer and organist Manuel Rodrigues Coelho.
His annulment from Marie Françoise of Savoy was granted on the grounds of 'impotency.'
After his deposition, he was held prisoner for nearly nine years in the Palace of Sintra, where he died.
“They call me the Victorious, but the court whispers that my mother holds the reins.”