to form the Norroy and Ulster King of Arms. The office of the Chief Herald of Ireland was created as successor to the Ulster King of Arms and the arms of Ireland were registered by the Chief Herald of Ireland on 9 November 1945. However, reference to the harp as the arms of the king of Ireland can be found in one of the oldest medieval rolls of arms. The Wijnbergen Roll, a French roll of arms dating from c. 1280 and preserved in The Hague, Netherlands, attributed "D'azure a la harpe d'or" () to the King of Ireland ("le Roi d'Irlande"). The harp, traditionally associated with the biblical King David, was a rare charge on medieval rolls and only two arms with a harp are listed in a collection of 19 early rolls. Triangular devices appeared on medieval Irish coinage by kings John and Edward I in the 12th and 13th centuries. These devices may have been crude harps or it may be that the harp developed from the use of triangles to distinguish Irish coins. The idea of a harp being the arms of Ireland may have originated as a reference to a fictional character, le roi d'irelande, in the courtly legend cycle of Tristan. Alternatively, it may have derived from a celebrated 13th century bardic poem, Tabhroidh Chugam Cruit mo Riogh, dedicated to Donnchadh Cairbreach O'Briain (d. 1242), a Gaelic King of Thomond. Whatever its origins, the harp was adopted as the symbol of the new Kingdom of Ireland, established by Henry VIII, in 1541. A document in the Office of the Ulster King of Arms, from either the late reign of Henry VIII or the early reign his son of Edward VI, states that they were the arms of the kingdom of Ireland. The arms were incorporated into the unified Royal Coats of Arms of England, Ireland and Scotland upon the Union of the Crowns of the three kingdoms in 1603. Upon the secession of the Irish Free State from the United Kingdom in 1922, the harp was taken as the emblem of the independent Irish state. Today, the image of the harp is used on the coins, passports and official seals of Ireland and is incorporated into the emblems of many bodies in Northern Ireland, such as the Police Service of Northern Ireland. The harp is frequently incorporated into the emblems of Irish companies, such