Maria of Castile

Maria of Castile
Queen consort of Aragon
Tenure	2 April 1416 – 27 June 1458
Queen consort of Naples
Tenure	2 June 1442 – 27 June 1458
Born	14 September 1401 Segovia, Crown of Castile
Died	4 September 1458(1458-09-04) (aged 56) Valencia, Kingdom of Valencia
Burial	Royal Monastery of the Trinity, Valencia, later Piccolomini Chapel, Sant'Anna dei Lombardi, Naples
Spouse	Alfonso V of Aragon ​ ​ (m. 1415; died 1458)​
House	Trastámara
Father	Henry III of Castile
Mother	Catherine of Lancaster

Maria of Castile (14 September 1401 – 4 September 1458)^[1] was Queen of Aragon and Naples as the spouse of Alfonso V of Aragon. Maria acted twice as the regent of Aragon during the reign of her spouse, as he was absent during most of his reign; those regencies lasted between 1420 and 1423 and between 1432 and 1458. She was also briefly Princess of Asturias in her own right as the heiress presumptive to the throne of Castile. She succeeded her father, Henry III of Castile, as Princess of Asturias in 1402.