Up, and to the office, where all the morning busy. At noon comes Mr. Pierce and dined with me to advise about several matters of his relating to the office and his purse, and here he told me that the King and Duke of York and the whole Court is mighty joyful at the Duchesse of York’s being brought to bed this day, or yesterday, of a son; which will settle men’s minds mightily. And he tells me that he do think that what the King do, of giving the Duke of Monmouth the command of his Guards, and giving my Lord Gerard 12,000l. for it, is merely to find an employment for him upon which he may live, and not out of any design to bring him into any title to the Crowne; which Mr. Moore did the other day put me into great fear of. After dinner, he gone, my wife to the King’s play- house to see “The Northerne Castle,” [L&M say “The Northerne Lasse”. P.G.] which I think I never did see before. Knipp acted in it, and did her part very extraordinary well; but the play is but a mean, sorry play; but the house very full of gallants. It seems, it hath not been acted a good while. Thence to the Exchange for something for my wife, and then home and to the office, and then home to our flageolet, and so to bed, being mightily troubled in mind at the liberty I give myself of going to plays upon pretence of the weakness of my eyes, that cannot continue so long together at work at my office, but I must remedy it.