This article accompanies the fable
The influential courtesan and intellectual Ninon de Lenclos held her salon from 1667 onwards in the Hôtel Mansart de Sagonne in rue de Tournelles in the Marais district. It is also where she died, in 1705. The building is still there although now it is apartments and it cannot be visited.
This area was home at the time to many aristocratic hôtels, or, more specifically
hôtels particuliers, meaning mansions or townhouses, and not really "hotels" as we know them today, although their (usually absent) owners allowed guests to stay. Of those that remain in central Paris, most are now either official residences, museums or luxury apartments.