fim do mundo..." ("Until the end of the world...") inscribed on the marble. Peter was also the father of Ferdinand I of Portugal and John I of Portugal. John was the Master of the military order of Avis, and he would become the founder of the Avis dynasty after the 1383–85 Crisis. Marriage and descendants Before his marriage to Constance, in 1329 he was betrothed to Blanche of Castile but because of her weak mental health and incapacity, the marriage never took place. See also Quinta das Lágrimas Chronicle of the King D. Pedro I (by Fernão Lopes) Notes References Bibliography Portuguese infantes House of Burgundy-Portugal 1320 births 1367 deaths People from Coimbra 14th-century Portuguese monarchs People with speech impediment Sons of kings