In the process, Ulrich took over an already existing monastic community, founded before 1072 on the Tuniberg (near Ober- and Unterrimsingen), which had moved between 1077 and 1080 to Grüningen near Oberrimsingen.
Ulrich was considerably helped in this matter by the strong links with Cluny which had already been built up by the founder of the existing monastery, the nobleman Hesso of Eichstetten and Rimsingen, and by Hermann I, Margrave of Baden (d. 1074).
At Ulrich's instigation, the community moved yet again in about 1087, this time to Zell in the Möhlin valley, where in 868 there had been a cell of the Abbey of St. Gall.
Burkhard of Hasenburg (or of Fenis), Bishop of Basle from 1072 to 1107, obtained possession for the priory of the surrounding land, which was in need of clearance.
The Baroque church of St. Ulrich retains some traces of the preceding medieval buildings, in respect of which there are records of altar dedications, demolitions, repairs and new construction.