Marc Yor was a French mathematician well known for his work on stochastic processes, especially properties of semimartingales, Brownian motion and other Lévy processes, the Bessel processes, and their applications to mathematical finance.
Marcabru (Occitan pronunciation: [maɾkaˈβɾy]; fl. 1130–1150) is one of the earliest troubadours whose poems are known. There is no certain information about him; the two vidas attached to his poems tell different stories, and both are evidently built on hints in the poems; not on independent information.
Marc-André Raffalovich was a French poet and writer on homosexuality, best known today for his patronage of the arts and for his lifelong relationship with the English poet John Gray.
Marcantonio Michiel (1484–1552) was a Venetian noble from a family prominent in the service of the state who was interested in matters of art. His notes on the contemporary art collections of Venice, Padua, Milan and other northern Italian centres, written sporadically between 1521 and 1543 and preserved in the Biblioteca Marciana, provide a major primary source for art historians and a less thoroughly inspected source for historians of décor.
Marcel Achard was a French playwright and screenwriter whose popular sentimental comedies maintained his position as a highly recognizable name in his country's theatrical and literary circles for five decades. He was elected to the Académie française in 1959.
Marcel Allain was a French writer mostly remembered today for his co-creation with Pierre Souvestre of the fictional arch-villain and master criminal Fantômas.
