April 1922 to Marie-Charlotte Köhler, they separated around 1935 and finally divorced 30 November 1940. They had two children together, Reinhard (2 March 1923 – killed in action 2 November 1943 at the Trigno River area 1 km south of Tufillo/Italy) and another boy (1 October 1927). Hildgenfeldt then remarried on 6 December 1940 to Leopoldine Statischek (23 September 1907 at Novi Sad/Serbia – suicide by poison ?