Irsai Olivér is a Hungarian white wine grape that was bred in 1930 by Pál Kocsis. It is a hybrid of Pozsonyi and Pearl of Csaba. This variety is early ripening and produces small berries that are relatively resistant to rot but susceptible to powdery mildew. Originally intended as a table grape, it is used to make muscat-like wines with a tropical fruit character and low levels of acidity.
(via winelibrary)