The church of the Val-de-Grâce was built by order of Queen Anne of Austria, wife of Louis XIII. After the birth of her son Louis XIV, Anne (previously childless after 23 years of marriage) showed her gratitude to the Virgin Mary by building a church on the land of a Benedictine convent. Louis XIV himself is said to have laid the cornerstone for the Val-de-Grâce in a ceremony that took place April 1, 1645, when he was seven years old.
Beautiful chapel. For more information check: http://en.wikipedia.org/wiki/Val-de-Gr%C3%A2ce