Henry, Duke of Cornwall (b. 1511)
Henry, Duke of Cornwall (1 January – 22 February 1511) was the first living child of King Henry VIII of England and his first wife, Catherine of Aragon, and though his birth was celebrated as that of the heir apparent, he died within weeks. His death and Henry VIII's failure to produce another surviving male heir with Catherine led to succession and marriage crises that affected the relationship between the English church and Roman Catholicism, giving rise to the English Reformation.