My Lord John My Lord John My Lord John is an unfinished historical fiction novel by the British author Georgette Heyer, published posthumously in 1975 after her death the previous year. It traces the early lives of the "young lordings" – Harry, Thomas, John, and Humfrey – all sons of the future Lancastrian king Henry IV of England. They grow up amidst turbulent events including the 1394 pestilence, the exile of their father by Richard II, the death of their powerful grandfather John of Gaunt, and the seizure of the throne by their father. John of Lancaster serves as the novel's main character.
John of Gaunt dexter side of the shield (the left hand side as viewed), and the differenced English royal arms on the sinister; but in 1388, when he surrendered his claim, he reversed this marshalling, placing his own arms on the dexter, and those of Castile and León on the sinister. He thus continued to signal his alliance with the Castilian royal house, while abandoning any claim to the throne. There is, however, evidence that he may occasionally have used this second marshalling at earlier dates. In addition to his royal arms, Gaunt bore an alternative coat of "Sable, three ostrich feathers ermine".