In 1667 the Grand Duke Ferdinando II recommended Pier Maria to Bernini and Pietro da Cortona in Rome.
Among his painted figure pieces are a Madonna of the Rosary and Saint Domenic (circa 1684) for the main altar of San Domenico al Maglio (now belonging to the Scuola di Santità Militare)[REF] and a lunette frescoed with the Baptism of St Augustine in the first cloister of Santo Spirito.