Le Plessis-Bourre is a perfect example of the style transition. Indeed, its important defense system with its impressive double drawbridges, its broad moat, its way round its corner towers and the keep it one of the strongholds of the late Middle Ages. However, its elegance, majestic courtyard, its arcaded promenade, large rooms lit by tall mullioned windows, its rich decoration and the comfort of its interior appreciated by several kings of France announce the Renaissance.