Versailles, Edo, and control of powerful nobles

Did Versailles also help the French monarchy keep the nobility where it could watch them?

Yes. The panel compares Versailles with Japan's requirement that lords travel regularly to Edo, which consumed elite resources and limited opportunities to organize against central authority.

Versailles is presented as a way to draw nobles away from their own holdings and keep them under observation. The panel compares it with Japan's alternate-attendance system, which required lords to travel regularly to Edo. Regular travel and residence imposed heavy costs on those elites. Both arrangements reduced the time and resources available for independent plotting.