Princess Michael was born
Freiin (Baroness) Marie-Christine Anna Agnes Hedwig Ida von Reibnitz on 15 January 1945 in
Karlovy Vary, then part of
Nazi-occupied Czechoslovakia and officially known as
Karlsbad in the German-populated
Sudetenland, now in the
Czech Republic. She was born at
Jagdschloss Inselthal, the family estate inherited from her Austrian maternal grandmother, Princess Hedwig von
Windisch-Graetz (1878–1918), the eldest daughter of
Alfred III, Prince of Windisch-Grätz, who served as the 11th
Minister-President of Austria and was President of the
Imperial Council from 1895 to 1918. Marie‑Christine was born into the
Reibnitz family, an ancient (
uradel) German noble house from
Silesia whose lineage can be traced back to 1288 with
Henricus de Rybnicz. The ancestral seat of the family was
Burg Läusepelz, today
Rybnica in present-day
Poland. On her paternal line, she descends from the
Burggrafen of
Dohna, Herrand III von
Trauttmansdorff, and the
Nostitz family, lineages that also appear among the ancestors of
Queen Elizabeth II. She is the younger daughter of
Freiherr Günther Hubertus von Reibnitz (1894–1983) and his second wife, Countess Maria Anna Carolina Franziska Walburga Bernadette
Szapáry von Muraszombath, Széchysziget und Szapár (1911–1988), Through her mother, Marie‑Christine descends from the
House of Lobkowicz and numerous other
Austrian princely families, connections that link her by blood to her husband, Queen Elizabeth II and
King Charles III. She is also descended from
Henry II of France and his wife,
Catherine de' Medici, and from Henry II's longtime mistress and rival of Catherine,
Diane de Poitiers, a connection she has noted in her historical writing. Through this line, she also descends from
Peter Paul Rubens, the Flemish Baroque painter and diplomat who was knighted by both the
Habsburg and
Stuart monarchs. Marie‑Christine's father was a member of the
Nazi Party and served as a cavalry officer in the
Waffen-SS during the
Second World War. Her parents divorced in 1946, and Marie‑Christine, her mother, and her elder brother,
Baron Friedrich von Reibnitz (born 1942), moved to Australia, where she was educated at
Convent of the Sacred Heart,
Rose Bay (now Kincoppal-Rose Bay). In the early 1960s, she lived with her father on his farm in Portuguese-ruled
Mozambique. She later studied History of Fine and Decorative Art at the
Victoria and Albert Museum. ==Marriages==