AFTER C ARDINAL R ICHELIEU HAD RECOGNIZED, and Louis XIII had rewarded, the genius of Monsieur Antoine Rossignol, he had built himself a little château. In later years he had hired no less a gardener than Le Nôtre to fix up the grounds. The château was at Juvisy. This had made sense at the time, as the King’s court had been in Paris, and Juvisy lay just outside of it.