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.
Christian Ravis
He was son of John Raue, deacon of the Nikolaikirche at Berlin, and was born on 25 January 1613 at Berlin, where he went to school at Berlinisches Gymnasium zum Grauen Kloster. In 1630 he began the study of theology and oriental languages at Wittenberg, where he graduated M.A. in 1636. The same year he visited Stockholm, where he made the acquaintance of Peter, son of Hugo Grotius, and in 1637 Hamburg, Upsala, Copenhagen, Leyden, and Amsterdam.