The founding of the Order of the Garter by King Edward III is announced on St. George's Day.

The Most Noble Order of the Garter is an order of chivalry founded by Edward III of England in 1348. The most senior order of knighthood in the British honours system, it is outranked in precedence only by the decorations of the Victoria Cross and the George Cross. The Order of the Garter is dedicated to the image and arms of Saint George, England's patron saint.

Edward III, also known as Edward of Windsor before his accession, was King of England from January 1327 until his death in 1377. He is noted for his military success and for restoring royal authority after the disastrous and unorthodox reign of his father, Edward II. Edward III transformed the Kingdom of England into one of the most formidable military powers in Europe. His fifty-year reign is one of the longest in English history, and saw vital developments in legislation and government, in particular the evolution of the English Parliament, as well as the ravages of the Black Death. He outlived his eldest son, Edward the Black Prince, and was succeeded by his grandson, Richard II.

Saint George, also George of Lydda, was an early Christian martyr who is venerated as a saint in Christianity. According to holy tradition, he was a soldier in the Roman army. Of Cappadocian Greek origin, he became a member of the Praetorian Guard for Roman emperor Diocletian, but was sentenced to death for refusing to recant his Christian faith. He became one of the most venerated saints, heroes, and megalomartyrs in Christianity, and he has been especially venerated as a military saint since the Crusades. He is respected by Christians, Druze, as well as some Muslims as a martyr of monotheistic faith.