Duc de Lancastre. Portrait of Henry, Duke of Lancaster (c.1310-1361), a Knight Founder of the Order of the Garter. He wears a blue Garter mantle over plate armour. The arms depicted on his surcoat appear incorrect. These are the arms of his second cousin King Edward III, who was the first to quarter the Royal Arms of France with Plantagenet, representing his claim to the French throne from his mother Isabella of France. The Earls and Duke of Lancaster bore the arms of their common ancestor King Henry III, which was the arms of Plantagenet alone, with a label of France for difference. A framed tablet displays painted arms of successors in his Garter stall at St. George's Chapel, Windsor, including: Stafford, Despencer, King of Portugal, FitzAlan, Earl of Arundel.

From: Edmund Horace Fellowes: The Knights of the Garter, 1348-1939. With a complete list of the stall-plates in St. George's chapel; London, Published for the dean and canons of St. George's chapel in Windsor castle by the Society for promoting Christian knowledge, 1939.[1]

Stall 3 (South 3):

• 1348 (2) Henry (Plantagenet), styled "of Lancaster" (Founder). Earl of Derby. Afterwards Duke of Lancaster. Served in the wars against the Scots, the Dutch, and French. Admiral of the Fleet and Steward of England.
• 1361 (38) Edward, 5th Lord le Despencer. Present at the battle of Poictiers.
• 1375 (57) Hugh, 2nd Earl of Stafford. Served in the wars in France and elsewhere.
• 1386 (75) Sir Nicholas Samesfield. in the retinue of the Black Prince and witness to his will. The King's Standard-bearer.
• c.1395 (86) *Sir William Arundel.
• 1400 (102) John I, King of Portugal. Married Philippa, sister of Henry IV, King of England.
• 1435 (149) *Edward, King of Portugal. Nephew of Henry IV. His stall-plate was here till, at least, the reign of Queen Elizabeth. Recently it was in Stall 6 (N.5). In 1938 it was moved again to the adjacent screen-panel. There is some doubt, as expressed by Hope, whether this plate may not be that of John I.
• [1399] (96) Humphrey (Plantagenet), styled "of Lancaster," Duke of Gloucester. 4th son of Henry IV. Transferred in 1438 to this stall from Stall 21 (S.21).
• 1447 (164) Alphonso V, King of Portugal.
• 1482 (220) *John II, King of Portugal. Election void. On re-election in 1488 placed in Stall 11 (S.11), but his stall-plate remains in Stall 3 (S.3).
• 1489 (239) Maximilian I, King of the Romans; afterwards Emperor. Transferred from this stall to Stall 2 (N.1) c. 1506, where his plate remains.
• 1508 (264) Charles, Archduke of Austria ; afterwards Charles V, Emperor. Transferred from this stall to Stall 2 (N.1) c. 1519 (?), where his plate remains.

References to: Hope, W. H. St. John, The Stall Plates of the Knights of the Order of the Garter 1348 – 1485: A Series of Ninety Full-Sized Coloured Facsimiles with Descriptive Notes and Historical Introductions, Westminster: Archibald Constable and Company Ltd, 1901.