He was in Rome as a long term papal protonotary; he became provost of the church of St. Georg in Cologne. Potken also edited the quadrilingual Psalterium in quatuor linguis Hebraea Graeca Chaldaea Latina, which appeared in 1518, with Johann Soter (i.e. Johann Heyl).For Soter (Heyl, Heil) see :de:s:ADB:Heyl, Johann He was a correspondent of Sebastian Brant and Johannes Reuchlin.
