Answer
Ennio Morricone went to school at Accademia Nazionale Di Santa Cecilia.
The Accademia Nazionale di Santa Cecilia is one of the oldest musical institutions in the world, founded by the papal bull Ratione congruit, issued by Sixtus V in 1585, which invoked two saints prominent in Western musical history: Gregory the Great, for whom the Gregorian chant is named, and Saint Cecilia, the patron saint of music.