Tucked away behind Museo del Prado, this chapel was traditionally favoured by the Spanish royal family, and King Juan Carlos I was crowned here in 1975 upon the death of Franco. The sometimes-sober, sometimes-splendid mock-Isabelline interior is actually a 19th-century reconstruction that took its cues from Iglesia de San Juan de los Reyes in Toledo; the original was largely destroyed during the Peninsular War. What remained of the former cloisters has been incorporated into Museo del Prado.