| Countess Maria Antonia von Waldstein | |
| Native Name Lang: | de |
| Birth Name: | Maria Antonie Gräfin von Waldstein Herrin zu Wartenberg |
| Birth Date: | 4 March 1771 |
| Birth Place: | Vienna, Archduchy of Austria, Holy Roman Empire |
| Death Place: | Vienna, Austrian Empire, Habsburg monarchy |
| Countess von Waldstein Princess Koháry de Csábrág et Szitnya | |
| Spouse: | Ferenc József, Prince Koháry de Csábrág et Szitnya |
| Children: | Ferenc (1792–1795) Mária Antónia (1797–1862) |
| Parents: | Count Georg Christian von Waldstein Countess Elisabeth Ulfeldt |
Countess Maria Antonie Gräfin von Waldstein Herrin zu Wartenberg (4 March 1771, Vienna – 17 January 1854, Vienna) was an Austro-Hungarian nobelwoman.[1]
Born on 4 March 1771 in Vienna, into the family of an old Bohemian nobility, Antonia was the fourth child of Count Georg Christian von Waldstein (1743–1791) and wife, Countess Elisabeth Ulfeldt (1747–1791), and is the great-granddaughter of the notorious Count Corfitz Ulfeldt. By birth, she was a member of the prominent House of Waldstein, maternal grandmother of King Ferdinand II of Portugal and great-grandmother of King Ferdinand I of Bulgaria. In Vienna on 13 February 1792, Antonia married the Hungarian nobleman Ferenc József, Prince Koháry de Csábrág et Szitnya, a member of the enormously affluent House of Koháry, to whom she bore two children; Ferenc (1792–1795) and Mária Antónia (1797–1862) who married the German Prince Ferdinand of Saxe-Coburg and Gotha and bore four children. She died on 17 January 1854 in Vienna, Austro-Hungarian Empire, but was later buried in the Glockenberg Cemetery, Coburg, Upper Franconia, Saxe-Coburg-Gotha.[2]