The French queen Catherine de' Medici was patron for building projects including the Valois chapel at Saint-Denis, the Tuileries Palace, and the Hôtel de la Reine in Paris, and extensions to the château of Chenonceau, near Blois. Born in 1519 in Florence, Catherine de' Medici was a daughter of both the Italian and the French Renaissance. She grew up in Florence and Rome under the wing of the Medici popes, Leo X and Clement VII. In 1533, at the age of fourteen, she left Italy and married Henry, the second son of King Francis I of France. On doing so, she entered the greatest Renaissance court in northern Europe.

The Basilica of Saint-Denis is a large former medieval abbey church and present cathedral in the commune of Saint-Denis, a northern suburb of Paris. The building is of singular importance historically and architecturally as its choir, completed in 1144, is widely considered the first structure to employ all of the elements of Gothic architecture.