Monique Roosmale Nepveu (born 1940) is a French billionaire and member of the Louis Dreyfus family.
[2] She is the great granddaughter of Léopold Louis-Dreyfus, founder of the Louis-Dreyfus Group, which had begun buying and selling wheat in the Alsace region a century earlier, and rapidly diversified into shipping, oil and other commodities.
[4] After the death of her brother Robert, his widow and second wife Margarita Louis-Dreyfus (born Rita Bogdanova), inherited 60% of the Louis Dreyfus Group[citation needed] (later increased to 65% in 2012).
[5][6] She was married to Louis Jan "Jack" Roosmale Nepveu (August 8, 1928 – April 9, 2013).
Her husband, a Dutch commoner born in Pretoria, South Africa, was previously engaged to Princess Marie Louise of Bulgaria.