Frequently used synonym (second name) but also homonym (collective name) for grape varieties. There is no independent grape variety with this/these name(s). The origin of the name is unclear, although there are some hypotheses. One of them is that the name was derived from the Italian municipality of Chiavenna in Lombardy, which in ancient times bore the Latin name Cleven. However, the assignment of the manifold synonyms of different spellings to the individual grape varieties cannot be understood in absolute terms, since the various names or spellings were or are also used individually depending on the country and wine-growing region. There are also some listed that have only purely historical significance. The common feature is that all varieties have close genetic relationships (see under Pinot):
In Slovakia, in the municipality of Radosina, a cuvée of Pinot Gris and Pinot Blanc is called "Radosinsky Klevner" (Klevner from Radosina). A 1947 vintage of this wine was served at the banquet following the coronation of Queen Elizabeth II (*1926) on 2 June 1953 in Westminster Abbey in London.
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