 He was patronised by Queen-Dowager Margarida of Aragon-Prades, widow of King Martí I.

Sant Jordi was born in the Kingdom of Valencia, the son of a freed morisco slave.He was Chamberlain at the court of King Alfons V of Aragon (Alfons III of Valencia) but he is best known for his poetry.Sant Jordi took part in King Alfonso's expedition to the Kingdom of Naples, where he was captured by the forces of Francesco Sforza on 30 May 1423.