From this date[217] until the death of Elizabeth these were the royal arms of England, but during the reign of Richard II (1377-99) the legendary arms of Edward the Confessor (or, a cross patoncé between five martlets on a field azure) were impaled with them, and Queen Mary, after her marriage with Philip of Spain, impaled the arms of Spain. About the year 1411 Henry IV, in imitation of the change made by Charles V in his arms, reduced the fleurs-de-lis to three in number. On the accession of James I it became necessary to add the arms of Scotland (or, a lion rampant within a double tressure flory and counterflory, gules) and in doing this James took the opportunity to add arms representing Ireland. For these he took the badge chosen for Ireland by Henry VIII (a harp or, stringed argent). Mr Serjeant Knight, in the memorandum referred to on [p. 57] becomes very indignant over this harp, and gives vent to his feelings in the following words:

At the same time (upon what consideration I am ignorant) something was to be added for ye Kingdome of Ireland or something that might signify so much and ye Harpe (as at present borne) it seems resolv'd on. But for what reasons am as ignorant as for ye former, ye Harpe being no more the Armes of that Kingdome or of any one from whence that King was lineally descended than any other Constellation or any of ye Signes of the Zodiack. Having often contemplated this, ye only satisfaction I could forme to myselfe was from ye temper of ye times & doe suspect ye Leaven of Puritanisme in it by soe readily foysting this to ye exclusion of that of his Maty had (as has all his Posterity) an indisputable Hereditary Right unto, equal to that of England, ... viz the Arms of Ulster: or, a cross gules.

This harp was not the ancient arms of Ireland. Those arms are supposed to have been three crowns in pale in a blue field, but as there was never a native king of the whole of Ireland it is clear that there could never have been a native coat of arms representative of the whole country. Placing the arms quarterly of France and England in the first and fourth quarters of his shield, James put those of Scotland in the second quarter and those of Ireland in the third. This arrangement was, however, not invariable. In some of the Irish seals[218] Ireland is found in the second place and Scotland in the third, while in the Great Seal of Scotland made in James II's reign the arms of Scotland occupy the first and fourth quarters, with England second and Ireland third.

After the execution of Charles I, the royal standard was replaced by the Commonwealth standard, with the cross and harp[219]. During the Protectorate (1653-9) the standard consisted of: 1 and 4 the cross of St George, 2 the cross of St Andrew, and 3 the Irish harp, with an inescutcheon of the arms of Cromwell (sable a lion rampant, argent)[220]. The Commonwealth standard came back for a few months in 1659-60, to be replaced by the royal standard of James I; the makeshift used by Mountagu while on his way to fetch Charles II back to the throne has already been described.

The remaining changes have been succinctly described by Mr Fox-Davies[221] as follows:

When William III and Mary came to the throne an inescutcheon of the arms of Nassau (Azure, billetty and a lion rampant or) was superimposed upon the Royal Arms as previously borne, for William III, and he impaled the same coat without the inescutcheon for his wife. At her death the impalement was dropped. After the Union with Scotland in 1707 the arms of England (Gules, three lions, etc.) were impaled with those of Scotland (the tressure not being continued down the palar line), and the impaled coat of England and Scotland was placed in the first and fourth quarters, France in the second, Ireland in the third.

At the accession of George I. the arms of Hanover were introduced in the fourth quarter. These were: Tierced in pairle reversed, 1. Brunswick, gules, two lions passant guardant in pale or; 2. Luneberg, or, semé of hearts gules, a lion rampant azure; 3. (in point), Westphalia, gules a horse courant argent, and on an inescutcheon (over the fourth quarter) gules, the crown of Charlemagne (as Arch Treasurer of the Holy Roman Empire).

At the union with Ireland in 1801 the opportunity was taken to revise the Royal Arms, and those of France were then discontinued. The escutcheon decided upon at that date was: Quarterly, 1 and 4, England; 2. Scotland; 3. Ireland, and the arms of Hanover were placed upon an inescutcheon. This inescutcheon was surmounted by the Electoral cap, for which a crown was substituted later when Hanover became a kingdom.

At the death of William IV., by the operation of the Salic Law, the crowns of England and Hanover were separated, and the inescutcheon of Hanover disappeared from the Royal Arms of this country, and by Royal Warrant issued at the beginning of the reign of Queen Victoria the Royal Arms and badges were declared to be: 1 and 4, England; 2. Scotland; 3. Ireland.