The Royal Seat of San Lorenzo de El Escorial is a historical residence of the King of Spain, in the town of San Lorenzo de El Escorial, about 45 kilometres (28 mi) northwest of the capital, Madrid, in Spain. It is one of the Spanish royal sites and functions as a monastery, royal palace, museum, and school. It is also known shorthand as El Escorial or the Escorial.

The Escorial comprises two architectural complexes of great historical and cultural significance: the royal monastery itself and La Granjilla de La Fresneda, a royal hunting lodge and monastic retreat about five kilometres away. These sites have a dual nature; that is to say, during the 16th and 17th centuries, they were places in which the power of the Spanish monarchy and the ecclesiastical predominance of the Roman Catholic religion in Spain found a common architectural manifestation. El Escorial was, at once, a monastery and a Spanish royal palace. Originally a property of the Hieronymite monks, it is now a monastery of the Order of Saint Augustine.

Ernesto Lecuona y Casado (August 6, 1895 - November 29, 1963) was a Cuban composer and pianist of Canarian father and Cuban mother, and worldwide fame. He composed over six hundred pieces, mostly in the Cuban vein, and was a pianist of exceptional quality.

Lecuona was born in Guanabacoa, Havana, Cuba. He started studying piano at an early age, under his sister Ernestina Lecuona, a famed composer in her own right. He later studied at the Peyrellade Conservatoire under Antonio Saavedra and the famous Joaquin Nin. Lecuona graduated from the National Conservatory of Havana with a Gold Medal for interpretation when he was sixteen. And he performed outside of Cuba at the Aeolian Hall (New York) in 1916.

He first travelled to Spain in 1924 on a concert tour with violinist Marta de la Torre; his successful piano recitals in 1928 at Paris coincided with a rise in interest in Cuban music.

He was a prolific composer of songs and music for stage and film. His works consisted of zarzuela, Afro-Cuban and Cuban rhythms, suites and many songs which are still very famous. They include Siboney (Canto Siboney), Malagueña and The Breeze And I (Andalucía). In 1942, his great hit, Always in my heart (Siempre en mi Corazon) was nominated for an Oscar for Best Song; however, it lost to White Christmas. Lecuona was a master of the symphonic form and conducted the Ernesto Lecuona Symphonic Orchestra, employing soloists including Cuban pianist and composer Carmelina Delfin. The Orchestra performed in the Cuban Liberation Day Concert at Carnegie Hall on October 10, 1943. The concert included the world premiere of Lecuona's Black Rhapsody. Lecuona gave help and the use of his name to the popular touring group, the Lecuona Cuban Boys, though he did not play as a member of the band. He did sometimes play piano solos as the first item on the bill.