Further information about the foundation of this community of Augustinian nuns is necessary.
The Augustinian convent in Dülmen, previously the Katharina-Emmerich-Haus, retains choir books from the convent, sine numero. The State and University Library in Hamburg contains a copy of Joh. Cassanus, written in 1478, from the convent, #Theol. 1055. The library of St. Hugh's Charterhouse in Partridge Green contains a Collectio canonum from the fifteenth century, belonging to this community, #bb. 15.
Handschriftenerbe des Deutschen Mittelalters, vol. 1, p. 170.
KOHL, Wilhelm. Die Schweternhäuser nach der Augustinerregel. (Berlin, 1968), Germania Sacra, N. F. 3), 249.