Proper noun
Messa (plural Messas)
A surname.
In February 1888, he began work on the Messa di Gloria. Source: Internet
Weinstock 1971, pp. 14–23 In the following January he was equally successful and, to fulfill his obligations to write music for Catania—a condition of his scholarship—he sent a Messa di gloria which was performed the following October. Source: Internet