It would be difficult to name a more interesting document connected with English History than that by which, through the courtesy of Henry Woodthorpe, Esq., Town Clerk of the City of London, the passage in the text will be illustrated; namely, a copy of the letter from Edward the Black Prince to the Mayor, Aldermen and Comonalty of London, acquainting them with the achievement of the battle of Poictiers. This important record, which has never before been printed, occurs among the archives of the city, in a contemporary MS. entitled Letter G. fol. 53^{b}. and was, there can be little doubt, entered into that volume soon after the receipt of the original. The greater part of the Prince's letter is occupied by the detail of the proceedings of the army for some days previous to the battle, and in describing the efforts of the Cardinal Peregort to produce a peace or truce between the kings of France and England; whilst the conflict itself is mentioned in a few words. Independently of the particulars of the English forces and their rencontres with the enemy which this letter so minutely relates, its most important statement is that of the precise day when the battle took place, for historians have differed materially upon the point. The Prince, however, expressly says that it occurred on the eve of the feast of St. Matthew, i.e. the 20th of September. His letter was dated at Bordeaux on the 22nd of the following month, and was sent to the Mayor of London by the Prince's chamberlain Sir Neel Loring; and the manner in which he refers the Mayor and Citizens to that distinguished knight for further information, cannot fail to be noticed, from its great similarity to the conclusion of a modern military dispatch. Another feature of this and other documents of the same nature in early periods, is the great simplicity and modesty with which they are written. An expression of gratitude to God alone interrupts the unadorned narrative; and the defeat of an army infinitely superior in numbers, and the capture of one of the most powerful sovereigns of the times together with his eldest son, are thus laconically related: "The battle took place on the eve of St. Matthew; and, praise be to God, the enemy were discomfited, and the king and his son were taken, and great numbers of other people taken and slain." To present as many contemporary documents as could be collected relative to this memorable event, two other letters are introduced, as well as the affidavit of an individual who claimed to have been the person to whom king John of France surrendered himself. One of the letters alluded to, which is printed in the _Archæologia_, vol. i. p. 213, is also from the Black Prince, to Reginald Bryan bishop of Worcester, dated at Bordeaux on the 20th of November, briefly informing him of his success, which he attributes in a great measure to the efficacy of that prelate's prayers.