Juan de Herrera: Palace Front
- Nicolaas Henneman
Juan de Herrera: Palace Front', calotype photograph by Nicolaas Henneman 31 August 1847. Plate 9 in 'Annals of the Artists of Spain', published by Sir William Sterling Maxwell (1818-1878) in 1848. Juan Herrera (1530-1597) was a Spanish architect and mathematician. View of San Lorenzo El Escorial.