Philip III of Spain sibling Carlos, Prince of Asturias
Early life
After Philip III's older half-brother Don Carlos died insane, their father Philip II had concluded that one of the causes of Carlos' condition had been the influence of the warring factions at the Spanish court. He believed that Carlos' education and upbringing had been badly affected by this, resulting in his lunacy and disobedience, and accordingly he set out to pay much greater attention to arrangements for his later sons. Philip II appointed Juan de Zúñiga, then Prince Diego's governor, to continue this role for Philip, and chose García de Loaysa as his tutor. They were joined by Cristóbal de Moura, a close supporter of Philip II. In combination, Philip believed, they would provide a consistent, stable upbringing for Prince Philip, and ensure that he would avoid the same fate as Carlos. Philip's education was to follow the model for royal princes laid down by Father Juan de Mariana, focusing on the imposition of restraints and encouragement to form the personality of the individual at an early age, aiming to deliver a king who was neither tyrannical nor excessively under the influence of his courtiers.
brother or sister kin