Probably an ancient Carpathian Basin or Transylvanian variety, the result of a natural crossing between Kövérszőlő and Leányka. Leányka was likely already known as an ancient Transylvanian variety, but there were some uncertainties about its other parent. Contradictions can be found regarding its synonym too; while many mention it as being synonymous with Feteasca Regala, English language writers and statistical sources refute this and treat Feteasca Regala and Királyleányka as separate varieties. It received state authorisation in Hungary in the 1970s.
It is used to make appealing monovarietal wines and also works well in blends. Királyleányka usually produces light wines with fresh, delicate perfume and notes reminiscent of grape blossom and sugar. It is rarely matured in oak.
Királyleányka is cultivated on 915 hectares in Hungary. There are 286 hectares in the Balatonboglár and 90 in the Tolna wine district. Proportionately, it is the most cultivated variety in the Balatonboglár wine district, but a few hectares of it can be found in almost every wine region.
It produces fresh, light, fruity wines in its own right, and adds attractive characteristics to blends. In some places, it is also used to produce sparkling base wine.
The variety produces a relatively pale lemon-yellow white wine depending on its region of origin. Wines are light to medium-bodied with moderate alcohol and fresh acidity, boasting citrus fruit, lime and delicate perfume when young. Wines may also show stone fruit and delicate spice depending on the terroir and winemaking style.