According to a no longer verifiable but improbable hypothesis, a grape variety Refosco (Refoschin, Refošk, Rifòsc, Rifosco) or an ancestor of the Pliny the Elder (23-79) mentioned ancient red wine Pucinum vinified. The first recorded mention of a grape variety called Refosco was made on June 6, 1409. In one document, a banquet in honor of Pope Gregory XII. (1335-1417) with the following wines served: Marzemino from Gradiscutta, Ramandolo from Torlano, Ribolla by Rosazzo, verduzzo by Faedis and Refosco by Albana. As a result, varieties under the Refosco name were often found in northern Italy (especially Friuli ) and Slovenia mentioned, but the identity is uncertain. It means a group of often closely related red grape varieties; but there is also at least one white one:
The two varieties Refosco di Rauscedo and Tazzelenghe (Refosco del Botton) have one Parent-offspring relationship to the variety Refosco di Faedis. Refosco varieties are mainly found in the Italian regions Friuli-Venezia Giulia. Veneto and Emilia-Romagna, as well as in Slovenia cultured. In California the variety was / is incorrectly Mondeuse Noire referred to as Refosco.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Refosco pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)
Refosco dal Peduncolo Rosso: MIPAAF - National Vine Certification Service