Minnborinus of Cologne dedications to Irish saints in the area, with five churches and seven chapels dedicated to Saint Brigid alone. His feast-day is celebrated on 18 July. Minnborinus of Cologne Minnborinus of Cologne (fl. 974–986) was an Irish abbot and saint active in Germany. Minborinus was the leader of a group of missionaries from Ireland who travelled to Cologne, Germany. Upon arriving, the Archbishop of Cologne, Warin of Cologne, made Minnborinus abbot of St. Martin's Abbey (now Great St. Martin Church) in the city, and installed the rest of the group in the abbey. Minnborinus governed St. Martin's from 974 till his
Electorate of Cologne confused with the Roman Catholic Archdiocese of Cologne, which was larger and included suffragant bishoprics such as Liège and Münster over which the Elector-Archbishop exercised only spiritual authority (see map below). Cologne was the ancient Roman city of Colonia Agrippina in the province of Germania Inferior, and has been a bishop's see since Roman times. In 953, the archbishops of Cologne first gained noteworthy secular power, when Bishop Bruno was appointed as duke by his brother Emperor Otto I. To weaken the secular nobility, who threatened his power, Otto endowed Bruno and his successors in the bishop's see with the