Ottoboni supported Arcangelo Corelli, the finest violinist of his generation, at his Monday night concerts called "academies". Through these concerts, Corelli was introduced to Handel. When Corelli died in 1713, he left his estate, which included some valuable pictures, to the Cardinal, who distributed the sizable funds among Corelli's relations and erected a princely tomb for the musician in the Pantheon. Other protégés of the cardinal were Alessandro Scarlatti, Antonio Vivaldi and Antonio Caldara. As his father Antonio Ottoboni also did, Pietro Ottoboni wrote texts of cantatas and librettos for oratorios, such as for Scarlatti's "La Giuditta" of 1693. When opera was banned in Rome, performances withdrew to Ottoboni's Cancelleria. His triumphal return to Venice in 1726 was celebrated with musical festivities that included a serenata "Andromeda liberata", with arias contributed by various Venetian masters, including Vivaldi.