12 See Hagen The Secret Front . Heydrich had had an affair with the daughter of an influential merchant in Kiel, who had personal contacts with the naval authorities and particularly with Admiral Raeder. According to the popular account of the details which brought about the break, the girl became pregnant and Heydrich refused to marry her since it was not compatible with the honour of a German officer to marry a pregnant woman, even when he himself was responsible. However, this seems to be an invention inspired by caricatures of the German reserve lieutenant, such as Heinrich Mann's Untertan. On the other hand Charles Wighton, basing himself on Frau Lina Heydrich, says in his book on Heydrich that by the time it became known that the merchant's daughter was pregnant, Heydrich was already engaged to his future wife and refused to break off this engagement