Brenna's last building in Saint Petersburg was a wooden theatre commissioned by Antonio Casassi in 1801; in 1832 Carlo Rossi replaced it with present-day Alexandrinsky Theatre building. Murder of Paul (March 11, 1801) and ascension of Alexander I of Russia spelled end of Brenna's career; he was not even invited to decorate the funeral ceremonies. Alexander clearly preferred the art of Quarenghi and Andrey Voronikhin. The family council decided to leave Russia for Saxony; other Italians (Concensio Albani, Antonio Rusca, Giuseppe Sarti) followed, for different reasons. Brenna's wife, father in law and some of his apprentices left in May 1802.