Ráthay is a new crossing conducted at the viticultural school in Klosterneuburg, and became an official Quality variety in 2000.
Origin
Austria, LFZ Klosterneuburg
Parentage
New breed from the Klosterneuburg 1189-9-77 (= Seyve Villard 18-402 x Blaufränkisch) x Blauburger
Vineyard area
47.39 ha; 0.1%

Parentage: New breed by Dr.Gertrude Mayer, LFZ Klosterneuburg.
Vineyard area: Registered as a quality grape variety since 2000, and is one of the PIWI varieties.
Important ampelographic features:
Leaf: medium-sized, conical to pentagonal; five lobes
Grape cluster: medium-sized; moderately compact berries; cylindrical, with wings; the grapes are dark blue to black in colour
Ripening time: mid-early season
Significance, conditions: Because of its robust colour, this variety is used also as a blending partner. It is partially resistant to oidium and peronospora. It is resistant to winter frost.
Wine: The deep, dark wines are full-bodied, and rich in extract and tannins. They are ready to drink early on.