Difference (heraldry) in the context of "House of Courtenay"

The coat of arms of the United Kingdom, also referred to as the royal arms, are the arms of dominion of the British monarch, currently Charles III. They are used by the Government of the United Kingdom and by other Crown institutions, including courts in the United Kingdom and in some parts of the Commonwealth. Differenced versions of the arms are used by members of the British royal family. The monarch's official flag, the royal standard, is the coat of arms in flag form.

There are two versions of the coat of arms. One is used in Scotland, and includes elements derived from the coat of arms of the Kingdom of Scotland, and the other is used elsewhere and includes elements derived from the coat of arms of the Kingdom of England. The shields of both versions of the arms quarter the arms of the kingdoms of England and Scotland, which united to form the Kingdom of Great Britain in 1707, and the Kingdom of Ireland, which united with Great Britain to form the United Kingdom in 1801. The Irish quarter was unaltered following the division of Ireland into Northern Ireland and the Irish Free State in 1922.

Robert Fitzwalter (died 9 December 1235) was one of the leaders of the baronial opposition against King John, and one of the twenty-five sureties of Magna Carta. He was feudal baron of Little Dunmow, Essex and constable of Baynard's Castle, in London, to which was annexed the hereditary office of castellan and chief knight banneret of the City of London. Part of the official aristocracy created by Henry I and Henry II, he served John in the wars in Normandy, in which he was taken prisoner by King Philip II of France and forced to pay a heavy ransom.

Fitzwalter was implicated in the baronial conspiracy of 1212. According to his own statement the king had attempted to seduce his eldest daughter, but Robert's account of his grievances varied from time to time. The truth seems to be that he was irritated by the suspicion with which John regarded the new baronage. Fitzwalter escaped a trial by fleeing to France. He was outlawed, but returned under a special amnesty after John's reconciliation with the pope.

William Herbert, 1st Earl of Pembroke, 1st Baron Herbert of Cardiff KG PC (c. 1501 – 17 March 1570) was a Welsh Tudor period nobleman, politician, and courtier.

Herbert was the son of Sir Richard Herbert and Margaret Cradock. His father was an illegitimate son of William Herbert, 1st Earl of Pembroke of the eighth creation (1468), by his mistress, Maud, daughter of Adam ap Howell Graunt.

Edmund Beaufort, 2nd Duke of Somerset, 4th Earl of Somerset, 1st Earl of Dorset, 1st Marquess of Dorset styled 1st Count of Mortain, (1406 – 22 May 1455), was an English nobleman and an important figure during the Hundred Years' War. His rivalry with Richard, Duke of York, was a leading cause of the Wars of the Roses.

Edmund of Woodstock, 1st Earl of Kent (5 August 1301 – 19 March 1330), whose seat was Arundel Castle in Sussex, was the sixth and youngest son of King Edward I of England, and the second son of his second wife Margaret of France, and was a younger half-brother of King Edward II. Edward I had intended to make substantial grants of land to Edmund, but when the king died in 1307, Edward II refused to respect his father's intentions, mainly due to his favouritism towards Piers Gaveston. Edmund remained loyal to his brother, and in 1321 he was created Earl of Kent. He played an important part in Edward's administration as diplomat and military commander and in 1321–22 helped suppress a rebellion.

Discontent against the King grew and eventually affected Edmund. The discontent was largely caused by Edward's preference for his new favourites, Hugh Despenser the Younger and his father. In 1326, Edmund joined a rebellion led by Queen Isabella and Roger Mortimer, whereby King Edward II was deposed. Edmund failed to get along with the new administration, and in 1330 he was caught planning a new rebellion and executed.

Thomas of Woodstock, Duke of Gloucester (7 January 1355 – 8 or 9 September 1397) was the fifth surviving son and youngest child of King Edward III of England and Philippa of Hainault. He led the rebellion of the Lords Appellant against his nephew, King Richard II, in 1388. In 1397, he was accused of treason and imprisoned; while awaiting trial, he was assassinated, presumably on Richard's orders.