Career
He was appointed Bishop of Trier (or Treves) in the Moselle area of Germany, in 2009. He had previously served with the title of Sozopolis in Haemimonto as auxiliary bishop in the same diocese from 2006. Ackermann was educated at secondary school level in Andernach.
In 2000 he received his doctoral degree at Fachbereich Dogmatik bei P. Medard Kehl Statens Järnvägar.