The white grape variety originates from France. There are 60 synonyms that indicate a formerly wide distribution and a long age. The most important are Austenq, Baratszoeloe, Béquin, Blanquette, Blanquette Sucrée, Chalosse, Cu de Brecherou, Dourec, Dourech, Doudant Blanc, Gaillac, Gris de Salces, Guindolenc, Hamuszoeloe, Irvine's White, Mauzac, Oeil de Tour, Ondain, Ondainc, Ondenc Blanc, Ondent, Ondin, Oundenc, Oundenq, Oustenc, Oustenq, Oustenque, Piquepout de Moissac, Plant de Gaillac, Primaic, Primard, Sable Blanc, Sencit Blanc and Trousseau Gris.
Parentage
Despite seemingly suggestive synonyms or morphological similarities, it should not be confused with the varieties Bourboulenc (Ondenc), Mauzac Blanc (Béquin), Piquepoul Blanc or Trousseau Gris (mutation of Trousseau Noir). Nothing is known about a possible relationship to the red varieties Arrouya (Dourec Noir) or Canari Noir (Ondenc Noir). According to DNA analyses carried out in 2016, it originates from a presumably natural cross between Savagnin Blanc (Traminer) x unknown parent variety (this is based on 25 DNA markers; see Molecular genetics). A colour mutation with reddish berries is Ondenc Gris.
