The French vine grower Joannes Seyve (1900-1966) was the son of Bertille Seyve (1864-1939) and worked with him and his brother Bertille Seyve Jr. in the Seyve-Villard vineyard; see there.
Important French wine-growing business in Saint-Vallier in the Drôme in the Rhône Valley, founded by Bertille Seyve (1864-1939) and his father-in-law Victor Villard. His sons Bertille Seyve Jr. (1895-1959) and Joannes Seyve (1900-1966) also worked in the business later on. From the end of the 19th century, over a hundred new French varieties were developed here by crossing American vines or hybrids with European vines.
These were mostly French hybrids of the so-called second generation, as hybrids from the French breeder Albert Seibel (1844-1936) were used as crossing partners for many of them. The grape varieties were...
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Markus J. Eser
Weinakademiker und Herausgeber „Der Weinkalender“