Golden Sárfehér, or Golden Sárfehér of Izsák as it is called in the Danube Wine Region, was the first wine to be declared as a wine of protected origin in Hungary in 2006. Golden Sárfehér of Izsák can be produced only in the town of Izsák and in the surrounding ten villages. This type was selected by Szélesi József in a Cadarca plantation in 1873, at a time when it was believed to be a variation of White Cadarca. Its name is originated from the fact that the bunch of the grapes is quite heavy, almost as heavy as mud (a Hungarian proverb associates mud with weightiness) and the resulting wine made from it has golden colour. The brother of the famous painter Csontváry Kosztka Tivadar, László played an essential part in the diffusion of this type of grape, who happened to be a pharmacist. This kind of grape ripens late, has a rich crop and sensitive to freeze. The Golden Sárfehér wine typically has high acids, which is one of the basic criteria of champagne production. It definitely can become an exhilarating primary material and as a result many local wine-makers manufacture champagnes and sparkling wines out of it. Its final products utilising reductive processes have greenish-yellow colour and grant light and exciting wines.