Continuation of the palace history :
With the transfer of goods in the Temple to the hospital Order, the royal Treasure kept previously in the Paris Temple is transported in 1317 to the Louvre. The Louvre is extended by Charles V.
See also: Louvre’s medieval castle.
Becomes obsolescent, the big tower is destroyed by François 1st in 1528 and in 1546 begins the stronghold transformation in the luxurious royal residence. These works are leading by Pierre Lescot and continue during the reign of Henri II and Charles IX. Then two new wings are attached to the building.
To 1594, Henri IV decides to combine the Louvre’s palace to the Tile works palace constructs by Catherine de Medicis: it is the" Grand Design", that the first step is the Big Gallery.
The Square Court is built from the architects Lemercier then Le Vau during the reign of Louis XIII and Louis XIV, quadrupling the size of the former Renaissance court. Then the palace’s decoration and planning are supervised by architects as Poussin, Romanelli and The Brun. But all this was interrupted brutally when Louis XIV chooses Versailless like the power centre and royal residence in 1678. The Louvre remains a long time just as it is. It is only in the XVIII Th century that new projects, notably laded by Gabriel and Soufflot, in the aim to continue the" Big Intention ".

From the palace to the museum :
Among these new projects, the idea to transform the Louvre into museum occurs during the reign of Louis XV. It will succeed during the Revolution.