Appointed Assay Master in Cologne (City), Germany, on 30 May 1506, then Mintmaster on 12 September 1511, a position he held
until 1515 when he was sacked because of under-weight coinage. Lit.: Alfred Noss, Die Münzen der Städte Köln und Neuss: 1474-1794
(1926) pp. 28. 32, 44, 46-49.