In 1765 Field Marshal Count Franz Moritz von Lacy, confidant of Empress Maria Theresa and her son Joseph II, purchased the estate. He had the building again enlarged and the English landscape park laid out, one of the first in the Habsburg monarchy.
In 1765, Field Marshal Count Franz Moritz von Lacy purchased the estate. He then enlarged the structure and designed an English-style park for the grounds, a pioneering effort within the Habsburg realm.