Example image of eyePlorer eyePlorer map for 'Werden Abbey': Essen-Werden Germany Order of Saint Benedict Ruhr (river) Ludger Prince-Bishopric of Münster Saint Stephen 809 Hildegrim of Châlons March 26 Bishopric of Halberstadt Helmstedt Roman Catholic Diocese of Châlons Provost (religion) Duchy of Saxony Frisia Westphalia 877 Imperial immediacy May 22 Diet (assembly) Prince-abbot Romanesque architecture Bursfelde Congregation Brandenburg County of Mark Protestant Reformation Vogt Baroque Berg (state) German Mediatisation Prussia Rhine Province St. Juliana's Abbey Old Frisian given names Balve Kettwig Rottum (Groningen) Codex Argenteus Wülfrath List of Christian religious houses in North Rhine-Westphalia St. Ludger's Abbey Radevormwald Emma of Lesum Essen Abbey Essen List of religious leaders in 1220 Golden Madonna of Essen