Upper Saxony
As of the late 18th century, Grobhäusern was played in rural Upper Saxony, and Scherwenzel was played in rural areas of Germany, Poland, Silesia and Bohemia. The use of Jacks (and to a lesser extent 9s) as wildcards in Scherwenzel may be related to the elevation of Jacks (and to a lesser extent 9s) to trumps in various European card games. Adelung suggested that Scherwenzel is the origin of the designation "wenzel" for Jacks as highest trumps.