Among the many sculptors who worked under his supervision (even though most were accomplished masters in their own right) were Luigi Bernini, Stefano Speranza, Giuliano Finelli, Andrea Bolgi, Giacomo Antonio Fancelli, Lazzaro Morelli, Francesco Baratta, Ercole Ferrata, the Frenchman Niccolò Sale, Giovanni Antonio Mari, Antonio Raggi, and Francois Duquesnoy. But his most trusted right-hand man in sculpture was Giulio Cartari, while in architecture it was Mattia de' Rossi, both of whom traveled to Paris with Bernini to assist him in his work there for King Louis XIV. Other architect disciples include Giovanni Battista Contini and Carlo Fontana while Swedish architect, Nicodemus Tessin the Younger, who visited Rome twice after Bernini's death, was also much influenced by him.