Much of the German crop was blended into Liebfraumilch, but overproduction ruined its reputation, and changing tastes led to many vines being grubbed up. Liebfraumilch became popular again with new wine drinkers and again changing tastes. However, in Franconia, where Liebfraumilch may not be produced and which primarily stuck to dry white wines in the decades when most other German regions produced semi-sweet wines, Silvaner has kept its popularity. Single-variety semi-sweet Silvaner, which used to be common, has all but disappeared from the German wine production. More recently there has been a revival in Alsace based on low yields from good vineyard sites, with formal recognition in 2006 as Zotzenburg Sylvaner became the first to be designated an Alsace Grand Cru. In the 1970s Brown Brothers experimented with "Syilvaner" in northeastern Victoria, but nothing seems to have come of it. There are just of Sylvaner in its land of origin, a victim of the trend in Austrian wine towards drier styles. Sylvaner ("silvanac zeleni" in Croatian) is grown in Eastern Croatia, in the regions of Slavonija and Srijem, as well as in other regions. In recent years high-quality semi-dry Silvanac zeleni from Orahovica has become one of Croatia's more popular whites. Sylvaner has a controversial place in Alsace wine. Since 2006, it may be used in Alsace Grand Cru, which was previously reserved for the four "noble grapes" Gewürztraminer, Muscat, Pinot gris and Riesling, but only in the Zotzenberg vineyard, which together with Altenberg de Bergheim and Kaefferkopf were allowed to produce mixed variety wines as Alsace Grand Cru. Zotzenberg Grand Cru wines may consist of Gewürztraminer, Pinot gris, Riesling and Sylvaner in any combination. It is therefore possible to produce a varietally pure "Sylvaner Grand Cru" from this vineyard, but it may not be labelled so, only "Zotzenberg". Even after this, Jean Trimbach's view was that "This Sylvaner grand cru is only possible in Zotzenberg, it is a recognition of the terroir, but we should stop there."