Italian composer. Nothing is known of his life until the production of his first opera, Gl'amori infruttuosi di Pirro, at the Teatro SS. Giovanni e Paolo, Venice, on 4 Jan. 1661. In 1666 he was named Kapellmeister to Duke Johann Friedrich of Brunswick-Lüneburg, who resided in Hannover. During his time in Hannover (1666-75) Sartorio made several visits to Venice during the winters, composing operas for Carnival and enlisting musicians to serve at court. Poor health and the invitation to write an opera for the S. Luca Carnival prevented a return to Hannover in the spring of 1672 and led to the productions of his operas L'Orfeo (1672) and Massenzio (1673). Sartorio left Hannover for good in April 1675, settling in Venice, where on 7 May 1676 he was appointed vice-maestro di cappella of St. Mark's. From then until his death, he completed five operas and began a sixth, La Flora. Besides operas, he composed cantatas, sacred vocal works, and arias.