The German administrative officer, viticulture expert, author and antiquity researcher Karl Christoph Friedrich Gok, also Gock (1776-1849) was the son of a wine merchant and a half-brother of the poet Friedrich Hölderlin (1770-1843). After various activities as town and office clerk, he became court and domain councillor at the royal court in Württemberg in 1817. He was a founding member and first chairman of the "Society for Wine Improvement in Württemberg" and a member of the Württemberg Central Office of the Agricultural Society. Gok is considered a pioneer and promoter of quality viticulture in Württemberg. He published writings on the "grapevine with its species and varieties", as well as contributions to the "knowledge of the characteristics and classification of cultivated grapevines". With a "natural classification system for the more important grapevine species" he made an important contribution to the natural history of the grapevine in ampelography.