The origins of Maison Fransac lie in the trading activity founded by Justin Denis (1810-1873) and his partner Henry Mounié (1811-1878), both from Charente winegrowing families. In 1838, they founded the company DENIS-MOUNIÉ and created the Cognac brand Denis Mounié, which became known around the world, as shown by the account books of the period. Among its distinguished clients was King Edward VII of England. Older bottlings from the house are now highly sought-after collector's items. Their estate was located in the Grande Champagne region, near Saint-Preuil in Charente.
The family connection that would later shape Fransac came through marriage: Henriette Denis, daughter of Justin Denis, married Charles Roullet. The Roullet family is regarded as one of the old historic families of Cognac and southwestern France, and this union helped connect the Denis-Mounié legacy to the Roullet name.
Alongside Denis-Mounié and Jules Robin, Fransac belongs to the early group of Cognac producers who systematically used a brand name and sold eaux-de-vie in bottle. At the end of the 19th century, the phylloxera crisis devastated the vineyards of Charente and forced a generational and agricultural shift. Folle Blanche, once the defining grape of the region, gave way to Ugni Blanc grafted onto American rootstocks. More resistant and naturally high in acidity, Ugni Blanc proved especially well suited to distillation and remains the backbone of Fransac's Cognac production today.
From 1947 onward, Richard Roullet took sole management of J. DENIS HENRY MOUNIÉ & Co. Until 1970, the trading business was prosperous, with exports to England, the United States, Germany, the Benelux countries, Mexico, Canada, and the Far East. Financial difficulties later emerged as a result of the 1973 oil crisis and the strategic reshaping of major Cognac houses such as Courvoisier, Bisquit, Hine, and Monnet.
In 1980, Richard Roullet sold the DENIS-MOUNIÉ brand to the liqueur company Bénédictine in Fécamp, Normandy. This led to a change in company name, and on April 2, 1980, the business became Maison Roullet S.A. Richard Roullet served as chairman, with his children Georges Roullet and Florence Roullet acting as directors. Around 1982, the DENIS-MOUNIÉ brand was sold on again to Hine, which later became part of LVMH in 1987.