Maurus Wolter

[2] He attended the Royal Gymnasium in Bonn, and in 1844 began studies in philology, philosophy and theology at the Rheinische Friedrich-Wilhelms University.

The two shared an apartment until Ernst Wolter entered the Roman Benedictine Abbey of St. Paul Outside the Walls in 1855,[2] receiving the name "Placidus".

There he was introduced to Katharina von Hohenzollern-Sigmaringen, who had just fled the novitiate of the Roman nunnery of Sant'Ambrogio after a poison attack on her life.

The princess became sympathetic to their views for the restoration of monastic life in Germany, and had the political and financial resources to assist.

[1] As St. Martin's Abbey began to distance itself from the motherhouse in Rome, it developed close links with Abbot Prosper Guéranger at Solesmes.

With the implementation of the Prussian law of May 31, 1875 against all Catholic orders and congregations that were not active in nursing, on December 3, 1875, the monastery had to be closed.