The Church of the Val-de-Grâce is a Roman Catholic church in the 5th arrondissement of Paris, in what is now the Val-de-Grâce Hospital. The edifice was formerly a royal abbey, and its dome is a principal landmark of the skyline of Paris. The church was initially designed by François Mansart, succeeded by Jacques Lemercier who designed the Saint-Sacrament chapel's spiral-coffered dome. The church was founded by Anne of Austria, Queen Consort of Louis XIII, in 1621. Construction began in 1634 and was finally finished in 1667, after the successive participation of Mansart, Jacques Lemercier, Pierre Le Muet and Gabriel Leduc. (wikipedia.org)