Studied at "l’Ecole des Beaux-Arts" in Paris under the tutelage of AlexisVollon, Léon Bonnat and Jean-Paul Laurens. From 1875, he painted landscapes from the Parisian region and Normandy. He then moved back to Provence providing him endless inspiration. Allègre sent vistas of the French Riviera, Monaco and Martigues near St Tropez (a very popular artists' colony) to the highly selective Salon de Paris from 1880 to 1932. He won numerous prizes and the State purchased several of his works for its national museums. Mention of honor in 1883, the Raigecourt-Goyon Grand-Prize in 1893, Bronze Medal at the 1900 World Fair. He was awarded the title of "Chevalier de la Légion d'Honneur" (one of France's highest distinctions) in 1903. The discovery of Venice in the early 1900's was a visual epiphany for Allègre. He dedicated the remaining years of his career to relentlessly 'dissecting' the mythical island, just as generations of artists did years earlier.