Play at Court was lawful, and encouraged, from Christmas to Epiphany, and this was the Groom Porter’s legitimate time. When the King felt disposed, and it was his pleasure to play, it was the etiquette and custom to announce to the company, that “His Majesty was out”; on which intimation all Court ceremony and restraint were set aside, and the sport commenced; and when the Royal Gamester had either lost, or won, to his heart’s content, notice of the Royal pleasure to discontinue the game was, with like formality, announced by intimation that “His Majesty was at home,” whereupon play forthwith ceased, and the etiquette and ceremony of the palace was resumed.

The fact of the Christmas gambling is noted in Jonson’s Alchemist

“He will win you,

By irresistible luck, within this fortnight
Enough to buy a barony. This will set him
Upmost at the Groom Porter’s all the Christmas.”

We saw that Pepys visited the Groom Porter’s at Christmas, so also did Evelyn.

6 Jan. 1662. This evening, according to custom, his Majesty opened the revels of that night, by throwing the dice himself in the privy chamber, where was a table set on purpose, and lost his £100. (The year before he won £1500.) The ladies, also, played very deep. I came away when the Duke of Ormond had won about £1000, and left them still at passage, cards, &c. At other tables, both there and at the Groom Porter’s, observing the wicked folly and monstrous excess of passion amongst some losers: sorry am I that such a wretched custom as play to that excess should be countenanced in a Court, which ought to be an example of virtue to the rest of the kingdom.”

8 Jan. 1668. I saw deep and prodigious gaming at the Groom Porter’s, vast heaps of gold squandered away in a vain and profuse manner. This I looked on as a horrid vice, and unsuitable to a Christian Court.”

In the reign of James II. the Groom Porter’s was still an institution, and so it was in William III.’s time, for we read in The Flying Post, No. 573, Jan. 10-13, 1699. “Friday last, being Twelf-day, the King, according to custom, plaid at the Groom Porter’s; where, we hear, Esqre. Frampton[22] was the greatest gainer.”

In Queen Anne’s time he was still in evidence, as we find in the London Gazette, December 6-10, 1705. “Whereas Her Majesty, by her Letters Patent to Thomas Archer, Esqre., constituting him Her Groom Porter, hath given full power to him and such Deputies as he shall appoint to supervise, regulate and authorize (by and under the Rules, Conditions, and Restrictions by the Law prescribed,) all manner of Gaming within this Kingdom. And, whereas, several of Her Majesty’s Subjects, keeping Plays or Games in their Houses, have been lately abused, and had Moneys extorted from them by several ill disposed Persons, contrary to Law. These are, therefore, to give Notice, That no Person whatsoever, not producing his Authority from the said Groom Porter, under Seal of his Office, hath any Power to act anything under the said Patent. And, to the end that all such Persons offending as aforesaid, may be proceeded against according to Law, it is hereby desired, that Notice be given of all such Abuses to the said Groom Porter, or his Deputies, at his Office, at Mr Stephenson’s, a Scrivener’s House, over against Old Man’s Coffee House, near Whitehall.”

We get a glimpse of the Groom Porters of this reign in Mrs Centlivre’s play of The Busy Body: