German architect. He was a pupil of Gontard, with whom he worked. Together they designed the very fine triumphal arch at Potsdam (1770), and with Boumann the Royal Library with its curved façade to the Forum Fridericianum, Berlin (1774–80). He designed 26–7 Breiterstrasse, Potsdam (1769), based on Inigo Jones's proposals for the Palace of Whitehall published in Vitruvius Britannicus.
W. Papworth (1892);Watkin & Mellinghoff (1987);Wendland (2002)