The grape has no known relation to any of the grapes used in the Hungarian wine Tokaji, even though evidence suggests that following the wedding of the Venetian princess Aurora Formentini to the Hungarian Count Batthyány in 1632, some vines of Tocai Friulano were brought with the princess to Hungary. To better distinguish the wines and to protect the Tokaji name, the European Union established regulations prohibiting the use of names too closely associated and easily confused with Tokaji. Winemakers in the Friuli have elected to just refer to the grape as simply "Friulano". The grapes were also planted outside Italy in the Goriška region of Slovenia, especially in the Vipava Valley and Goriška Brda and was known as "Tokaj". After the European Union prohibition, the Slovenian wine producers have first changed the name of the wine in Sauvignonasse or Zeleni sauvignon (Green Sauvignon). After a few years, in 2013 the name of "Tokaj" was changed to "Jakot", now the official name for the grapes and wine from Slovenia wine regions. From Italy the grape is believed to have spread to France where it was transported to Chile as "Sauvignon blanc". Only in the 1990s did ampelographers determine that the Chilean "Sauvignon blanc" was actually Sauvignon vert. Once the discovery was made, plantings of "true" Sauvignon blanc increased as Sauvignon vert (or "Sauvignonasse" as it known) decreased. While the grape still remains a popular planting in the Friuli-Venezia Giulia and Goriška Brda, it currently has little presence in other parts of the world. Unlike Sauvignon gris, which is a clonal mutation of Sauvignon blanc also found in Chile, Sauvignon vert has no known connection with Sauvignon blanc. The vines were believed to be interspersed together in Bordeaux during the 19th century when the cuttings were brought to Chile labeled as just "Sauvignon blanc". The leaves and berry clusters of the Sauvignon vert and Sauvignon blanc are very similar which explains part of the confusion between the two vines. The two vines also have similar susceptibility to Botrytis. The wines made from the two grapes are noticeably different when compared together with Sauvignon blanc being much more aromatic with notes of ripe fruit like gooseberries and black currant that Sauvignon vert lacks in favor of softer, floral flavors.