Prince Johannes Heinrich of Saxe-Coburg and Gotha
Johannes Heinrich Friedrich Werner Konrad Rainer Maria, Prince of Saxe-Coburg-Gotha-Koháry, in Slovak: Ján Henrich, in Hungarian: János Henrik, (28 March 1931, in Innsbruck – 14 April 2010, in Innsbruck),<ref name= "Wettin" is a former Hungarian magnate, being also a prince from the house of Saxe-Coburg-Gotha and the last holder of Csábrág and Szitnya, both in modern day Slovakia, lost to communist regime of Czechoslovakia.
He is the only son of Prince Rainer of Saxe-Coburg and Gotha by his first wife Johanna Károlyi de Károly-Patty.
In Munich on 24 October 1957 Johannes Heinrich married first Baroness Gabrielle of Fürstenberg. They have one daughter:
- Felicitas Franziska Johanna Maria Gabriela Elisabeth Pauline Helene Stephanie Leopoldine Alexandra Sophie Mathilde Josepha Anna Karoline Immaculata Emanuela (b. Sorengo, 6 April 1958), married on 15 November 1987 to Serge von Trotzky, from ancient Russian nobility, and has issue. <ref>http://en.rodovid.org/wk/Family:52669</ref>
Johannes Heinrich and Gabrielle were divorced on 4 July 1968.<ref name= "Peerage" Four months later, in Munich on 12 November 1968, Johannes Heinrich married second Princess Mathilde of Saxony, a medical doctor and granddaughter of King Frederick Augustus III of Saxony. They had one son:
- Johannes Albert Leopold Frederick Christian (b. Innsbruck, 17 November 1969 – killed in skiing accident, Ortler, 21 August 1987).
Johannes Heinrich and Mathilde separated in August 1995.
After his death, due to the exclusion of his uncle Philipp Josias Maria Joseph Ignatius Michael Gabriel Raphael Gonzaga (Walterskirchen, 18 August 1901 – Vienna 31 Dec 1994), married morganatically on 23 April 1944 to Sarah Aurelia Halasz, and his descendants (their only son and four grandchildren were barred from the succession), the heir to the House of Saxe-Coburg-Gotha-Koháry is the former King Simeon II of Bulgaria.