What is "robola"

Robola is a white Greek wine grape variety that is grown primarily on the Ionian island of Cephalonia. Historically the vine was thought to be the same variety as the Friuli wine grape Ribolla and was thought to have been brought to northeast Italy by Venetian merchants trading with Cephalonia in the 13th century. However, DNA profiling in the 21st century has cast doubt on that theory and today Robola is classified by the Vitis International Variety Catalogue (VIVC) as a separate variety.