Jean-Odéo Demars, born in Sézanne (France), 2 February 1695, died in Paris, 7 November 1756, was an 18th-century French organist, composer and harpsichordist. In 1726, he became organist at the Saint-Jacques-la-Boucherie church in Paris. Later, he is appointed organist at Saint-Nicolas-du-Chardonnet church. He married Geneviève Françoise Legris on February 18, 1734, and they raised seven children. He was the father of musician Hélène-Louise Demars. As composer he wrote several spiritual songs for the female students of the Saint-Cyr school, near Paris. Fétis wrote that he published an organ book now lost. We know little else than he was the elder brother of Charles Demars (28 May 1702 - 4 Mars 1774), nicknamed « le cadet », who became in 1728 organist in the Vannes Cathedral, in Brittany, until his death. In 1735, Charles Demars publishes his 1er Livre de Clavecin. This book contains 4 suites in the Handel manner. This collection consists of four suites: Suite I in A major Suite II in G minor Suite III in D minor Suite IV in C minor See also List of French harpsichordists List of composers from Brittany References External links IMSLP Charles Demars : Pièces de Clavecin Two pieces by Charles Demars played by harpsichordist Claude Nadeau : Prélude Gigue Demars (de Mars), Jean Odéo (Odo) on Grove Music Online Charles Demars - Allemande from Suite in A Major on YouTube 1695 births 1756 deaths French classical organists French male organists French harpsichordists French Baroque composers French music educators Place of birth missing 17th-century male musicians Male classical organists