Spirit upon the Apostles; 2: the first to the fourth century, including the martyrdom of Saint Peter and Saint Jean's vision of the Apocalypse; 3. the fifth to the eleventh century, including the baptism of Clovis and Pope Gregory I defining the rules for Gregorian chants; 4. the twelfth to the thirteen century, including Bernard of Clairvaux's founding of the Cistercian monasteries and the construction of the first Gothic cathedrals; 5. the fourteenth to the fifteenth century, including Catherine of Siena in front of the papal palace in Avignon and the precursors of the Renaissance; 6. the sixteenth to the eighteenth century, including Henry IV with the Edict of Nantes, marking a step forward for religious tolerance and an end to the French Wars of Religion; 7. the nineteenth and twentieth century, including an image of the Holy Spirit overseeing the work of both the Holy Family and contemporary workers. Most of the frescoes were painted onto wet cement and mistakes could not be corrected. To enhance the unity of the interior decor, the architect imposed a standard height for the depiction of all major characters, and red as the color of all the backgrounds. Murals and frescoes were the work inter alia of Maurice Denis, Georges Desvallières, Robert Poughéon, Nicolas Untersteller and Elizabeth Branly. Carlo Sarrabezolles sculpted the statues and the stained glass windows are the work of Louis Barillet, Paul Louzier and Jean Herbert-Stevens. Raymond Subes undertook the metalwork and Marcel Imbs made the mosaic and stained glass boxes of the crypt. Organ The choir organ was built by Gloton-Debierre after plans by Albert Alain, and was inaugurated by Jehan Alain in December 1934. There were also plans for a second, large organ, but it was never built due to lack of funding. The church’s first organist was the prodigious Jeanne Demessieux who worked there between 1933 and 1962. Gallery See Also List of historic churches in Paris References Citations Sources Roman Catholic churches in the 12th arrondissement of Paris Roman Catholic churches completed in 1935 Monuments historiques of Paris Art Deco architecture in France 20th-century Roman Catholic church buildings in France