St. Lamberti's church is one of the oldest established churches within the city of Münster standing today, together with the Cathedral, the 'Liebfrauen-Überwasser' church and the 'Mauritz' church. St. Lamberti's church was first recorded at the time of Bishop Hermann II (1174-1203 A.D.). In a document from 1189 A.D., the Bishop announced that he was creating a number of new parishes (St. Ludgeri, St. Martini, and St. Aegidii): "Until now, the parish was led solely by the priest, Father Ernestus." Father 'Ernestus' is the first member of St. Lamberti's clergy whose name we have a record of.