In 1785 architect Juan de Villanueva was commissioned to design this Madrid museum
Welcome also to the 
contradictions... [DOC] [TLE] Collection online - British Museum - drawing [PAR] Design for an altar wall dedicated to St John the Baptist in the church of San Juan 
de la Penetencia in Orihuela (near Valencia) c.1780 Pen and grey ink and grey 
wash. ... Villanueva is not known to have visited Madrid where Giaquinto worked, 
but ...