The French jurist and viticulture expert Baron Pierre Marie Gabriel Le Roy Boiseaumarié (1890-1967) was a combat pilot during World War I (1914-1918) after studying law. He married Emma Bernard Le Saint in 1919, the heiress of Château Fortia in the southern Rhône. As a vineyard owner, he faced significant challenges in the Vaucluse department. The devastation caused by the phylloxera led to a decline in wine quality. Falsifications with grapes from other regions, such as the Gard department, were common. In 1923, he defined an area that was best suited for viticulture based on his ecological analyses. His criteria were the wild plants thyme and lavender that grew there. For this area, he determined the grape varieties that are still valid today, which are best suited due to soil type and climate. Thus, he is the founder of the appellation Châteauneuf-du-Pape, classified in 1935.
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