Tarbuk's family was of Austrian and Croatian descent, having been settled as military farmers on the Austrian border with the Ottoman Empire in the Balkans. His father, Johann Tarbuk von Sensenhorst was field marshal in the Austro-Hungarian Army; his mother was Mathilde Josefa Bayrhammer Edle von Sensenhorst. "Fritz" had 4 brothers: • Karl Tarbuk von Sensenhorst (general in the Austrian Army, later field marshal in the German
Wehrmacht) • Hans Tarbuk von Sensenhorst (Gen.-Colonel in the Austrian Army, later General in the German Wehrmacht) • Robert Tarbuk von Sensenhorst (Colonel in the German Wehrmacht) • Felix Tarbuk von Sensenhorst, (Colonel in the German Wehrmacht and Counter-Intelligence Officer) The brothers had two sisters. ==Marriage==