Johann Carl Christoph Wilhelm Joachim Haller von Hallerstein was a German architect, archaeologist and art historian. Hallerstein studied architecture at the Carlsakademie in Stuttgart and then at the Berliner Bauakademie under David Gilly. He was then engaged in 1806 as a royal building inspector in Nuremburg. He visited Rome in 1808 to study its early Christian architecture. In June 1810 he accompanied Jakob Linkh (1786–1841), Peter Oluf Brøndsted (1780-1842), … Wikipedia
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