In March 1945, it said, just before the end of World War II, Margit held a large party in the town of Rechnitz on the Austrian-Hungarian border to fete her Nazi friends. She, the daughter and heiress of European baron and tycoon Heinrich Thyssen, and her friends drank and danced the night away.
At the height of the evening, just for fun, 12 of the guests boarded trucks or walked to a nearby field, where 180 Jewish slave laborers who had been building fortifications were assembled. They had already been forced to dig a large pit, strip, and get down on their knees. The guests took turns shooting them to death before returning to the party. The organizer of this operation was Margit’s lover Hans Joachim Oldenberg. Margit’s husband, Count Ivan Batthyany, Sacha’s grandfather’s brother, was also at the party. [link]