Sir Isumbras

Sir Isumbras is a medieval metrical romance written in Middle English and found in no fewer than nine manuscripts dating to the fifteenth century. This popular romance must have been circulating in England before 1320, because William of Nassington, in his work Speculum Vitae, which dates from this time, mentions feats of arms and other 'vanities', such as those found in stories of Sir Guy of Warwick, Bevis of Hampton, Octavian and Sir Isumbras. Unlike the other three stories, the Middle English Sir Isumbras is not a translation of an Old French original.

The tale of Sir Isumbras bears many similarities to the legend of Saint Eustace, a popular saint in medieval England. Some sources have classified it categorically as an adaptation of this legend, and point to the fact that Sir Isumbras has been grouped in manuscripts with saints' legends and other religious materials. Others have drawn attention to close parallels in the story of Sir Isumbras, and in other medieval hagiographic works, with tales from Iran and northern India.

Sir Isumbras is an over-proud knight who is offered the choice of happiness in his youth or his old age. He chooses the latter, and falls from his high estate by the will of Providence. He is severely stricken; his possessions, his children and, lastly, his wife, are taken away; and he himself becomes a wanderer. After much privation he trains as a blacksmith, learning to forge anew his armour, and he rides into battle against a sultan. Later, he arrives at the court of the sultan's queen, who proves to be his long-lost wife. He attempts to Christianise the Islamic lands over which he now rules, provoking a rebellion which is then defeated when his children miraculously return to turn the tide of battle.