Christian von Ehrenfels
Christian von Ehrenfels was born on 20 June 1859 in Rodaun near Vienna and grew up at his father's castle Brunn am Walde in Lower Austria. He joined secondary school in Krems and first studied at the Hochschule für Bodenkultur in Vienna and then changed to the Universität Wien.
Christoph von Dohnányi
Dohnányi was born in Berlin, Germany to jurist Hans von Dohnanyi and Christine Bonhoeffer. His uncle on his mother's side, and also his godfather, was Dietrich Bonhoeffer, a Lutheran pastor and theologian/ethicist. His grandfather was the pianist and composer Ernő Dohnányi, also known as Ernst von Dohnányi. His father, uncle and other family members participated in the German Resistance movement against Nazism, and were arrested and detained in several Nazi concentration camps before being executed in 1945, when Christoph was 15 years old. Dohnányi's older brother is Klaus von Dohnanyi, a German politician and former mayor of Hamburg.