Assen or Asen Hartenau (16 January 1890 – 15 March 1965), in his early life styled as the Count of Hartenau, was an Austrian civil servant and the son...

von Hartenau (6 February 1889). They had a son Assen, Count von Hartenau (1890-1965) and a daughter Countess Marie Therese Vera Tsvetana von Hartenau (1893-1935)...

of Count von Hartenau, so Loisinger became the Countess von Hartenau. The couple settled in Graz, Austria, and had two children, Assen (1890–1965) and...