One of the most successful and fruitful artists of his epoch, Gucci built or reconstructed a number of palaces of notable people in all parts of the Polish Republic. Among them was the Firlej family castle in Janowiec on the Vistula (1565-1585), for whom he also sculpted a Mannerist tomb in a local parish church (ca. 1586). For the Myszkowski family he erected a new palace in Książ (1585-1595), which however has not survived to our times. He also erected the Łobzów palace (1585-1587) and expanded the castle in Pińczów (1591-1600).