E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A fashionable coffee-house in the reign of Charles II.
Met their servant coming to bring me to Chatelins, the French house, in Covent Garden, and there with music and good company mighty merry till ten at night. The Duke of Monmouth and a great many blades were at Chatelins, and I left them there.Pepys: Diary, April 22nd, 1668.