 Hans von Prondzynski was a captain in the German army during the Second World War, was wounded several times in battle, and was "inter alia" awarded the Iron Cross Class 1 (EK1).After the war, he lost his lands in what became part of Poland, moved to the new West Germany, studied law in Göttingen, and then joined the cement-producing company Dyckerhoff AG, eventually becoming a director.He married Irene Gräfin (approximately Countess) Grote in the Grote family residence at Breese im Bruche, in Lower Saxony (Hanover) in 1950, and they had four children