The death of Philip II Historical milestone · San Lorenzo de El Escorial, Cuenca del Guadarrama, Madrid The king died at the age of seventy-one in his rooms in the monastery he had himself ordered to be raised, after weeks of agony. He had laid the building's first stone on 23 April 1563 and wished to die within sight of the high altar. 13 de septiembre de 1598 Photo: Gargarapalvin (CC BY-SA 4.0) What to see and do in San Lorenzo de El Escorial