Franz Bock, a German theologian and ar-clucologist, born at Burtscheid in 1823. He was educated at Bonn, became chaplain at Crefeld in 1850, then founded in 1852 the first large exhibition of ancient masterpieces of Christian art, and established a manufactory of silks after the models of the middle ages, for use in churches, and model schools for instruction in the manufacture of church vessels He col lected in various parts of Europe materials for his Geschichte der liturgischen Gewander des Mittelalters (2 vols., Bonn, 1859), and was one of the founders of the episcopal museums at Cologne and Aix-la-Chapelle. He was appointed honorary canon of the cathedral of Aix-la-Chapelle, and has also been pastor at Cologne since 1857. He spent eight years in preparing his principal work, Die Kleinodien des heili-gen romischen Reichs deutscher Nation nebst den Kroninsignien Bohmens, Ungarns und der Lombardei, with 58 chromo-lithographic plates (Vienna, 1864), and has published many other works relative to Christian art and antiquities.