 The Licensing Act 1737 also limited spoken drama to the patent theatres, originally only the Theatre Royal, Drury Lane and Theatre Royal, Covent Garden in London.The regime was relaxed slightly by the Theatrical Representations Act 1788, under which local magistrates were permitted to license occasional performances for periods of up to 60 days.The Theatres Act 1843 restricted the powers of the Lord Chamberlain, so that he could only prohibit the performance of plays where he was of the opinion that "it is fitting for the preservation of good manners, decorum or of the public peace so to do".