The appellation (actually Macvin without the "r") in the French wine-growing region of Jura is for a sweet vin de liqueur. It was classified in 1991 as exactly the four hundredth appellation (before classification it was called Maquevin or Marc-Vin). Such wines have been produced in France since the 14th century. The idiosyncratic recipe is attributed to the abbesses of the Château-Chalon monastery. Originally, it was a cooked wine to which aromatic and spicy substances were added....
There is a vast number of sources on the web where one can acquire knowledge about wine. But none has the scope, timeliness and accuracy of the information in the encyclopaedia at wein.plus. I use it regularly and rely on it.
Sigi Hiss
freier Autor und Weinberater (Fine, Vinum u.a.), Bad Krozingen