Argent in the context of "Flag of Greece"

The coat of arms of Greece (Greek: Εθνόσημο, lit. 'national emblem', [eθˈnosimo] ) comprises a white Greek cross on a blue escutcheon, surrounded by two laurel branches. It has been in use in its current form since 1975. Prior to the adoption of the current coat of arms, Greece used a number of different designs, some of which were not heraldic; the first heraldic design was introduced in 1832 and its main element, the blue shield with the white cross, has been the base for all other national coats of arms since then. The design is a heraldic representation of the Greek national flag adopted in 1822, which featured a white cross on a blue field.

Humphrey of Lancaster, Duke of Gloucester (3 October 1390 – 23 February 1447) was an English prince, soldier and literary patron. He was, and styled himself as, "son, brother and uncle of kings", being the fourth and youngest son of Henry IV of England, the brother of Henry V, and the uncle of Henry VI. Gloucester fought in the Hundred Years' War and acted as Lord Protector of England during the minority of his nephew. A controversial figure, he has been characterised as reckless, unprincipled, and fractious, but is also noted for his intellectual activity and for being the first significant English patron of humanism, in the context of the Renaissance.

Unlike his brothers, Humphrey was given no major military command by his father, instead receiving an intellectual upbringing. Created Duke of Gloucester in 1414, he participated in Henry V's campaigns during the Hundred Years' War in France: he fought at Agincourt in 1415 and at the conquest of Normandy in 1417–9. Following the king's death in 1422, Gloucester became one of the leading figures in the regency government of the infant Henry VI. He proved a rash, impulsive, unscrupulous and troublesome figure, he quarrelled constantly with his brother, John, Duke of Bedford and uncle, Cardinal Henry Beaufort and went so far as to violently prosecute a dispute with the Duke of Burgundy, a key English ally in France, over conflicting claims to lands in the Low Countries.

Tinctures are the colours, metals, and furs used in heraldry. There are nine tinctures in common use: two metals, five colours, and two furs. The metals are or (gold or yellow) and argent (silver or white); the colours gules (red), azure (blue), vert (green), sable (black), and purpure (purple); and the furs ermine, which is derived from the winter fur of a stoat, and vair, which is derived from the fur of a red squirrel. The use of other tinctures varies depending on the time period and heraldic tradition in question.

Where the tinctures are not depicted in full colour, they may be represented using one of several systems of hatching, in which each tincture is assigned a distinct pattern, or tricking, in which each tincture is designated by a letter or abbreviation.

Saint Patrick's Saltire or Saint Patrick's Cross is a red saltire (X-shaped cross) on a white field. In heraldic language, it may be blazoned argent, a saltire gules. Saint Patrick's Flag (Irish: Bratach Naomh Pádraig) is a flag composed of Saint Patrick's Saltire. The origin of the saltire is disputed. Its association with Saint Patrick dates from the 1780s, when the Anglo-Irish Order of Saint Patrick adopted it as an emblem. This was a British chivalric order established in 1783 by George III. It has been suggested that it derives from the arms of the powerful Geraldine or FitzGerald dynasty. Some Irish nationalists opposed the usage of the flag to represent Ireland, as they considered it to be a British invention.

After its adoption by the Order of Saint Patrick, it began to be used by other institutions. When the Acts of Union 1800 joined the Kingdom of Ireland with the Kingdom of Great Britain, the saltire was added to the British flag to form the Union Flag still used by the United Kingdom. The saltire has occasionally served unofficially to represent Northern Ireland and also appears in some royal events.