Probably Hungary's most famous wine is named after the town of Tokaj in the north-east of the country near the borders with Slovakia and Ukraine. The word "Tokaj" is probably of Hunnic-Turkish origin and means "forest by the river". It was first mentioned in a chronicle at the end of the 11th century, where the passage of a Cumanian army over the river Tisza is described at "Thocoyd". King Béla IV. founded Hungarian viticulture on a larger scale. (1235-1270), the first boom in the Tokaj region took place in the 13th and 14th centuries. When the very first Tokaj aszú was produced in its present form is no longer known, but it is certainly one of the first wines made from botrytised noble sweet berries. The "invention" is also claimed by other countries or producers, such as Château d'Yquem.