 Complete the following phrase:  The exact date of birth and parents of Heinrich Kalteisen are not known but he was probably from Koblenz in the Electorate of Trier now Germany. He belonged to the Dominican Order. He studied at the Universities of Vienna and Cologne, where he earned a Magisters degree and a doctorate. Until 1424 he was inquisitor for Mainz, Cambrai and Leuven. From 1430 he held the title of doctor sacrae theologiae professor  Latin, Professor Doctor of Sacred Theology  and taught in Mainz. in 1433 he participated on behalf of the Archbishop of Mainz, Conrad III of Dhaun, in the 