He organised missions of German priests and founded monasteries at Oldenburg, Mecklenburg, Ratzeburg, Lübeck, and Lenzen, erecting the first three into dioceses.
Dia mengorganisir misi pastor-pastor Jerman dan mendirikan biara di Oldenburg, Mecklenburg, Ratzeburg, Lübeck, dan Lenzen, mendirikan tiga yang pertama ke keuskupan.