In 1710, he presented in Messina Cathedral his work The Augury of Victories, dedicated to King Felipe V. In a report dated 22 January 1720, the Patriarch of the West Indies, Cardinal Carlos de Borja de Centelles and Ponce of León, Archbishop of Trebisonda, wrote that Facco had an excellent pay in the court of the king of Spain (having rejected an offer, of equal pay, by the Portuguese court, where Spinola served as Spanish ambassador).
It was dedicated to Saints Martha and Mary to celebrate the marriage of Facco's student, the Prince de Asturias, to Isabel of Orleans (which occurred in January 1721).
[2][3] Facco fell victim of his scheming colleagues: he slowly lost all of his positions until, in the last years of his life, he was merely a violinist in the orchestra of the Royal Chapel.
Facco wrote a cycle of twelve concertos for violin, strings and organ with the title of Pensieri Adriarmonici (Thoughts Adriarmonicous), published in Amsterdam, the first book in 1716 and the second in 1718.
He also wrote solo cantatas—on his own texts, for he was a skilled poet—these were found at the National Library of Paris, and were presented by soprano Betty Fabila for the first time (conducted by Uberto Zanolli) in 1962 at the Castle of Chapultepec in Mexico City.