Lucien Mainssieux is a painter and French artist, born August 4, 1885 and died July 8, 1958 in Voiron, a small town near Grenoble. François Joseph Girot is his first master and Jules Flandrin his first major influence. He arrived in Paris in 1905, the year of the scandal of the wild painters to work with Jean-Paul Laurens. At the Julian Academy, he meets Dunoyer de Segonzac who will be a faithful friend. In Paris, he frequents Max Weber, meeting thanks to him Picasso but also frequents Matisse, Marquet, Jacqueline Marval and Rouault. He is not one of the movements of the time, especially Cubism. His only absolute model is Cezanne. Mainssieux undertakes many journeys during his life, especially throughout France. Even if he lives in Paris, he returns to Voiron the summer, where he can paint landscapes with greater ease. His first trip outside France was in Rome in 1910. It is a revelation for him: ancient monuments with rosy stones, perfect architecture and sculpture fascinate him. When he sees the Palatine Hill, he decides to paint it, marveling at the beauty of the landscape. This mount appeared to him the first time as "the sun slowly descended to the horizon, the palaces of the city and the distant hills were in a mist of gold". In 1913, he exhibited the painting of this scene, Le Mont Palatin, at the Paris Autumn Salon. He is noticed by critics and the general public thanks to his style. He returned to Rome five times between 1911 and 1926. In 1921, after obtaining a scholarship for Africa, Mainssieux went to Tunisia. His discovery of the Muslim world amazes him and he begins to paint marabouts, palm groves, sands and oases. He will return to this country many times. He visited Morocco four times from 1929, then wrote a book, The secret Morocco, illustrated drawings but he will never publish. His last trip was again to Morocco in 1958, in Agadir. Between 1942 and 1954, Mainssieux undertook four trips to Algeria, to Tipaza.