_Illustrations of Welsh History:_--1. _Offer by David, Prince of Wales, to become a Vassal of the Pope._--2. _Death in the Tower of Griffith ap Llewellyn, Prince of North Wales._--In Madox's Collections in the British Museum (Add. MSS. No. 4565., vol. lxxxviii. p. 387.) are the annexed references to two interesting incidents in the history of Wales, noticed in a MS. Chronicle of John De Malverne, in the library of Corpus Christi College, Cambridge. The references are sent for insertion in "NOTES AND QUERIES," in the hope that some member of the University may be induced to favour the readers of "NOTES AND QUERIES" with the passages referred to by Madox. "Per idem tempus David Princeps Norwalliæ ad alas papalis protectionis confugere proponens, terram suam optulit ei ab ipso tenere, reddendo inde sibi quingentas marcas, cui perhibetur D. Papa favorem præbuisse in magnum regni Angliæ præjudicium: novit enim mundus Principem Walliæ ab antiquo vassallum Regis Angliæ extitisse. Ex eod. Chron. [MS. Joh. de Malverne, M. 14.] A. Dom. 1244." "Griff. fil. Lewel. Princeps Norwalliæ, being in the Tower of London, fell down as he tryed to make his escape out of a window, and dyed. Ib. ad. Ann. 1244." JOHN AP WILLIAM AP JOHN. Inner Temple, May 28. Queries. THE WINDOW-TAX, LOCAL MINTS, AND NOBBS OF NORWICH. In a MS. chronicle, now before me, of remarkable events which occurred, in connexion with the history of the city of Norwich, from the earliest period to the year 1716, compiled by an inhabitant of the place named Nobbs, of whom a word or two at the end of this note, occurs the following passage: "This year (1695) the parliament made an act for remedying the coin of the nation, which was generally debased by counterfeits, and diminished by clipping, and _laid a tax upon glass windows_, to make good the deficiency when it should be taken in. And, for the speedy supply of money to the subjects, upon calling in of the old money, there were mints set up in York, Bristol, Chester, Exeter, and Norwich. The mint in Norwich began to work in Sept. 1696. Coined there 259,371_l._ The amount of plate and coin brought into this mint was 17,709 ounces." These quantities are identical with those given by Blomefield (_History of Norwich_, fol., 1741, p. 300.). 1. The duties chargeable on windows, as now collected, were _regulated_ by Sched. A. of 48 Geo. III. c. 55.; but, assuming the correctness of Nobbs' statement, is it generally known that this tax _originated_ in the year, and under the circumstances, above recorded? Bishop Burnet (_Hist. Own Time_, 8vo., 1833, vol. iv. pp. 252. 258.), describing the proceedings taken by parliament for rectifying the state of the coinage, without telling us by what means the money was raised, says (p. 290.): "Twelve thousand pounds was given to supply the deficiency of the bad and clipped money."