Las contribuciones de Juan de Herrera al proyecto de El Escorial.

"Reviews the three careers of J. de H. as soldier, draughtsman and architect. Examines recent claims that H. made significant design contributions to the Escorial and concludes that these claims are unfounded. Tentatively advances the possibility that Philip II took an active part in the design process after the death of Juan Bautista de Toledo in 1567" (Rila).