Louvre

The Louvre, located in Paris, France, is one of the largest museums in the world. During the Renaissance, it was a royal palace.

In 1527, the Assassin Giovanni Borgia received permission to consult the Louvre's library with Maria Amiel. They discovered Nicolas Flamel's will leaving his grimoire to his nephew, and used the records to locate his closest living relative.

Reference

 * Assassin's Creed: Project Legacy - Divine Science: Chapter 1 - Maria Amiel