Before moving to Rome and the Papal court, however, Mariani received a number of prestigious commissions in Venice and the Veneto, benefiting from his connections with the Rubinis and Vittoria, as well as with the Vicentine architect Vincenzo Scamozzi.
Before settling in Rome and joining the Papal court, Mariani was entrusted with important assignments in Venice and the Veneto. These tasks were made possible by his connections with the Rubinis, Vittoria, and the Vicentine architect Vincenzo Scamozzi.