author
Best known for an early 18th-century study of chocolate, this elusive writer explored how cacao was grown, prepared, and understood in Europe. The surviving record is thin, but the book itself helped preserve a detailed snapshot of chocolate culture in its time.

by D. Quélus
D. Quélus is the credited author of The Natural History of Chocolate, an English translation of the French work Histoire naturelle du cacao, et du sucre, first published in 1719. The book focuses on the cocoa tree, the making of chocolate, and the beliefs and debates surrounding its properties and uses.
Very little biographical information about the author could be confirmed from the sources reviewed here. Even the name appears in slightly different forms, including D. de Quelus and D. Quélus, which suggests that the author is now known mainly through the book rather than through a well-documented life.
What remains clear is the work’s lasting interest. It stands as an early popular account of cacao and chocolate, mixing natural history, practical explanation, and period medical ideas in a way that still appeals to readers curious about food history.