This architect introduced the notorious mezzanine, which has so intrigued historians of the Louvre because of the unequal elevations of the various floors, a procedure which was unavoidable save by recourse to a substitution less to be objected to than the existing fault. Actually the connection with the Tuileries was made by the prolongation of this gallery by the Ducerceau brothers in 1595. The work existing to-day, but only in its reconstructed form, is the same as that completed by Napoleon III (1863-1868).

Charles IX and Henri III, though making the Louvre their residence, practically had no hand in its embellishment. The former gave his energies and ideals full play in the Saint Bartholomew massacres and shot at poor unfortunates who fled beneath the windows of his apartments on the quay-side of the Louvre. This, if not the chief incident of his association with the fabric, is at least the best remembered one. Henri III, too, led a scandalous life within the walls of the Louvre and fled on horseback, smuggled out a back door, as it were, on a certain May evening in 1588, never more to return, for the Dominican monk Jacques Clément killed him with a knife-thrust before he had got beyond Saint Cloud.

The accepted tale of the part played by the famous window of the Louvre in the drama of Saint Bartholomew's night is as follows: As the signal tolled from the belfry of Saint Germain l'Auxerrois it was answered by another peal from the great bell of the Palais de Justice, where, within a small apartment over the watergate of the Louvre, the queen and her two sons were huddled together not knowing what might happen next. The multitude streamed by on the quay before the palace, and, finally, amid all the horror of Coligny's murder, and the throwing of his body from a window of the Louvre to the street below, Charles IX stood at his window regarding the fleeing Huguenots as so much small game, shooting away at them with an arquebuse as they went by, and with an unholy glee, even boasting that he had killed a score of heretics in a quarter of an hour.

Historians of those exciting times were perhaps none too faithful chroniclers and Charles's "excellent shots" in his "royal hunt," and hideous oaths and threats such as: "We'll have them all, even the women and children," are not details as well authenticated as we would like to have them. Like Rizzio's blood stains they lack conviction.

The ambitious white-plumed Henri de Navarre, when he became Henri IV of France, set about to connect the tentacle which stretched southward from the Old Louvre with the Tuileries (a continuation of the project of Catherine de Médici), and, by the end of the sixteenth century, had built a long façade under the advice of the brothers Ducerceau. This work was added to on the courtyard side under the Second Empire, when a reconstruction, more likely a strengthening of underpinning and walls because of their proximity to the swift-flowing waters of the Seine, of the work of Henri IV was undertaken.

Joining the Tuileries and this work of Ducerceau was the celebrated Pavilion de Flore, a work of the Henri IV period rather than that of Catherine de Médici.

From the Pavilion de Flore to the Pavilion de Lesdiguières ran this long gallery of the Ducerceau and numerous interstices and unfinished vaults and arches leading towards the Old Louvre were, at this epoch, completed by Metezeau and Dupaira. The chief apartment of this structure became known as the Galerie Henri IV, and was completed in 1608.

At the death of Henri IV, Richelieu, who at times builded so well, and who at others was a base destroyer of monuments, demolished that portion which remained of the edifice of Charles V. The work of Pierre Lescot was preserved, however, and to give symmetry and an additional extent of available space the rectangle facing Saint Germain l'Auxerrois to-day was completed, thus enclosing in one corner of its ample courtyard the foundations of the earlier work whose outlines are plainly traced in the pavement that those who view may build anew—if they can—the old structure of Philippe Auguste. In mere magnitude the present quadrangle is something more than four times the extent of the Louvre of the time of Charles V.

This courtyard of the Louvre is perhaps that spot in all Paris which presents the greatest array of Renaissance art treasures. From ground to sky-line the façades are embroidered by the works from the magic hand of the Siècle Italien. Jean Goujon himself has left his brilliant souvenirs on all sides, caryatides, festoons, bas-reliefs, statues and colonnades.

Enthusiasm and devotion knew no bounds among those old craftsmen, but all is well-ordered, regular and correct. "He who mentions the Louvre to a Frenchman gives a greater pleasure than that of Méhémet-Ali when one praises the pyramids." In a way the Louvre is the most magnificent edifice in the universe; "four palaces one piled up on another, une ville entière." And when the Louvre was linked with the Tuileries in the real, what a splendour it must have been for former generations to marvel at! "La plus belle et la plus grande chose sous le soleil."