The Collegiate Church of St. Martin and St. Severus Church, the former Abbey of St. Martin and St. Severus in Münstermaifeld in the district Mayen-Koblenz. The 12th of the to 13 -Century Romanesque-Gothic church is "Maifeld Munster" as described. The Collegiate Church of St. Martin and St. Severus is a protected cultural property to the Hague Convention