Who married Helene Mayr?

Prince Friedrich Christian of Schaumburg-Lippe (5 June 1906 – 20 September 1983) was a German prince, the youngest son of Georg, Prince of Schaumburg-Lippe and his consort Princess Marie Anne of Saxe-Altenburg.

Unhappy and disillusioned with the state of Germany after World War I, Friedrich Christian turned to the Nazi Party as a solution for the country's ills. As an ardent Party supporter, he worked vigorously to gain noble and royal support for it, and eventually became an upper privy councillor and adjutant to Propaganda Minister Joseph Goebbels. In 1939, Friedrich Christian was asked to become king of Iceland by Icelanders sympathetic to the Nazi party, but refused due to the opposition of Foreign Minister Joachim von Ribbentrop.

After World War II, the prince devoted his writings to defending the record of the Third Reich, producing such works as Was Hitler Really a Dictator? (a personal account of the German leader) and "Als die goldne Abendsonne..." Aus meinen Tagebüchern der Jahre 1933–1937 (the prince's personal diaries).