Aranjuez

http://classicalguitarmagazine.com/the-truth-about-rodrigos-concierto-de-aranjuez/

The writing of the Aranjuez was sparked by a dinner in Santander in September 1938, a pleasant evening shared by Rodrigo, guitarist Regino Saínz de la Maza, and the Marqués de Bolarqué. During this occasion, it was suggested Rodrigo should compose a guitar concerto, to which he agreed.