As a matter of fact, there are several mistakes, first a son of Antoine Chotek, baron Franz Ferdinand von Wuthenau (Sophie Chotek's sister), whose godfather was Archduke Franz Ferdinand left Germany before the last war and travelled to Argentina. He was married to Elinor Bromberg, one of their daughters Marie Antoinette was born in Germany, the other two daughters Elisalex and Paulette were born in Buenos Aires, as their only son Franz Ferdinand von Wuthenau, who was born in Argentina as well. Their grandmother Antoine geb, Gräfin Chotek, never came to Argentina, just her son Franz Ferdinand and his wife Elinor. It is true that a second brother Alexander baron von Wuthenau went to Mexico, where he has lots of family. From the Argentine branch of the von Wuthenau family, Marie Antoinette married to count Sagramoso, had two children Lionello and Domitila, her sisters have offspring as well and her brother Francisco Fernando has lots of children too, like Elisalex. They are the only ones related to the Kinsky family, through their great grandmother (countess Wilhelmine Kinsky) and their only cousin Kinsky that had lived in Argentina was HSH Prince Franz Ulrich Kinsky, who passed away five years or so ago. He had just one son Charles Kinsky, who is the current head of the House of Kinsky (Reich Fürst und Durchlaucht) he lives and works in London now, with his wife Dolores and their two boys. My complete name is Luis A. F. Wetzler, address Esmeralda 1255, 5th floor, 1007 Buenos Aires, Argentina and Marie Antoinette countess di Sagramoso, née von Wuthenau can be reached through email, if any wants to get in touch with her, and with her permission I will send it to you, thanks a lot (please write to lafvwetzler@gmail.com, which is my main email)