Background
He was the only son of Prince Rainer of Saxe-Coburg and Gotha by his first wife, Johanna Károlyi de Károly-Patty.
He was 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, firstly, Baroness Gabrielle of Fürstenberg. They had one daughter:
Princess 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. Johannes Heinrich and Gabrielle were divorced on 4 July 1968.
Four months later, in Munich on 12 November 1968, Johannes Heinrich married, secondly, 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 climbing accident, Ortler, 21 August 1987). Johannes Heinrich also had an illegitimate daughter named Christine Johanna Wieser (b 29 March 1968 in Innsbruck) with Doctor Medical
Edda Wieser (6 November 1940 - 16 December 1996).