 The oldest son, Francesco Antonio Mattielli, would later join Lorenzo's workshop in Vienna.Among his first commissions in Vienna were the statues for the new Palace (designed by Antonio Beduzzi) and the garden of the rich merchant Leopold von Engelskirchner.Most were destroyed in World War II, but four Attica statues remain (three in the Hofburg in Innsbruck and one in the “Historischen Museum” in Vienna).