(b Lübeck, Dec 24, 1707; d Alt-Döbern [Niederlausitz], nr Dresden, Jan 23, 1791).
German art scholar and collector. At school in Lübeck he became acquainted with the ideas of Leibniz and Christian Wolff; from 1724 he studied law and literature in Leipzig. There he developed an interest in the Enlightenment thinking of Johann Christoph Gottsched and in art, particularly the many private collections. In 1730 he became a private tutor in the Dresden house of the elector’s court poet Johann Ulrich König. Two years later he published a treatise on morality, Die wahren Absichten des Menschen. Heinecken then became steward at the house of the minister, Graf Sulkowsky. After Sulkowsky’s fall Graf Heinrich von Brühl, the most powerful man at the Saxon court, took on Heinecken as librarian and private secretary. In 1737 he translated Longinus’ On the Sublime from the Greek. In this work Heinecken pointed to the importance of ancient art theory long before Winckelmann, attracting much attention and the enmity of Gottsched. Under Brühl’s protection Heinecken, who was without wealth, was knighted, awarded the Alt-Döbern estate and managed Brühl’s estates, factories and finances. He was promoted to Oberamtsrat at the Saxon court; his unusual expertise in art and his clear judgement caused the king, ...