 During this period he became acquainted with David Garrick, the famous actor, and his Austrian wife Eva Maria Weigel, who became avid collectors of his work.In 1763 Pillement then traveled to Vienna, where he was employed at the Imperial Court of Maria Theresa and Francis I.In 1765 he left Vienna for Warsaw, where his many projects included decorating the Royal Castle in Warsaw and the Ujazdowski Castle, his largest project, commissioned by the king of Poland Stanisław II Augustus.