[1] After graduating from school, Mirbach began training as a poultry farmer in Nice and Ludwigsburg, after which he worked at the State Agricultural Institute in Wiad (near Stockholm) for a year in 1955.
[4] As a military attaché, Mirbach was murdered by Red Army Faction (RAF) terrorists during the hostage-taking at the German embassy in Stockholm in April 1975.
After the Swedish police had occupied the basement of the embassy, the hostage-takers commissioned Mirbach to negotiate.
One of the hostage-takers' demands was that Mirbach should persuade the police officers to leave the first floor of the embassy building they were occupying, otherwise he would be shot.
When the police did not comply with the demand to withdraw after the ultimatum had been extended several times, Mirbach was shot from behind at close range by one of the hostage-takers with five shots to the head, back, pelvis and legs and thrown head first down the stairs.