Landowski was born in Paris, France of a Polish refugee father of the January Uprising, and a French mother Julie Vieuxtemps, daughter of Henri Vieuxtemps. He studied at the Académie Julian, before graduating from the École nationale supérieure des Beaux-Arts, he won the Prix de Rome in 1900 with his statue of David, and went on to a fifty-five-year career. He produced over thirty five monuments in the city of Paris and twelve more in the surrounding area. Among those is the Art Deco figure of St. Genevieve on the 1928 Pont de la Tournelle. He also created "Les Fantomes", the French Memorial to the Second Battle of the Marne which stands upon the Butte de Chalmont in Northern France.