South-German master-masons among whom Hans (1412–82) and his son Matthäus (d. 1505) were the most important. Hans worked under Ensinger on the Frauenkirche (Church of Our Lady) in Esslingen on the Neckar. Matthäus, who seems to have been apprenticed at Cologne, joined his father at Esslingen, later becoming master-mason of Ulm Minster (c.1480), where he succeeded Ensinger and designed the upper stages of the spectacular western tower. However, the beautiful octagon and perforated masonry spire were not completed until the 1890s by August von Beyer (1834–99), according to Böblinger's drawings, forming the tallest such ensemble in Europe.
Baum (1956);Bucher (1979)
Subjects: Renaissance Art.