Persons of the middle class, not entitled to coat-armour, invented certain arbitrary signs called =Merchants' Marks=, and these often occur in the stonework and windows of old buildings, and upon tombs. Piers Plowman, who wrote in the reign of Edward III, speaks of "merchauntes' markes ymedeled" in glass. Sometimes these marks were impaled with the paternal arms of aristocratic merchants, as in the case of John Halle, a wealthy woolstapler of Salisbury, rendered immortal by the Rev. Edward Duke in his 'Prolusiones Historicæ.' The early printers and painters likewise adopted similar marks, which are to be seen on their respective works.[73] A rude monogram seems to have been attempted, and it was generally accompanied with a cross, and, occasionally, a hint at the inventor's peculiar pursuit, as in the cut here given, where the staple at the bottom refers to the worthy John Halle's having been a merchant of the staple. The heralds objected to such marks being placed upon a shield, for, says the writer of Harl. MS. 2252 (fol. 10), "=Theys be none Armys=, for every man may take hym a marke, but not armys without a herawde or purcyvaunte;" and in "The duty and office of an herald," by F. Thynne, Lancaster Herald, 1605, the officer is directed "to prohibit merchants and others to put their names, marks, or devices, in escutcheons or shields, which belong to gentlemen bearing arms and none others." [Illustration] At the commencement of the fifteenth century considerable confusion seems to have arisen from upstarts having assumed the arms of antient families--a fact which shows that armorial bearings began to be considered the indispensable accompaniment of wealth. So great had this abuse become that, in the year 1419, it was deemed necessary to issue a royal mandate to the sheriff of every county "to summon all persons bearing arms to prove their right to them," a task of no small difficulty, it may be presumed, in many cases. Many of the claims then made were referred to the heralds as commissioners, "but the first regular chapter held by them in a collective capacity was at the siege of Rouen, in 1420."[74] The first _King of Arms_ was William Bruges, created by Henry V. Several grants of arms made by him from 1439 to 1459 are recorded in the College of Arms.