Carl Haller von Hallerstein

Johann Carl Christoph Wilhelm Joachim Haller von Hallerstein (10 June 1774, Burg Hilpoltstein, Hiltpoltstein, Principality of Bayreuth – 5 November 1817, Ampelakia, Thessaly, Ottoman Greece) 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 Nuremberg.

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), Otto Magnus von Stackelberg (1787–1837) and Georg Koës (1782-1811) to Athens, via Naples, Corfu and Corinth. In 1811 in Athens he met the English architects Charles Robert Cockerell and John Foster (1758-1827), with whom he studied Athens's ancient buildings.

In 1811 he, Linkh and von Stackelberg discovered the temple of Aphaia on the island of Aegina, a part of whose sculptures are in the Munich Glyptothek as a result. In the same year, von Hallerstein (with Cockerell, Gropius, Linckh, Stackelberg, Bröndsted and Foster) excavated the ruins of the temple of Apollo in Bassae, whose relief frieze was taken to the British Museum by Cockerell. Sadly Haller's drawings were lost at sea. Later he led yet more excavations on Ithaka and in the ruins of the theatre on Milos.

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