Issue of Edward III of England – 3 February 1399), 1st Duke of Lancaster, fourth son. From the marriage of John of Gaunt and Blanche of Lancaster, daughter and heiress of the Duke of Lancaster, descended legitimate male heirs, the Lancasters (King Henry IV (1399-1413), who as Henry of Bolingbroke in 1399 deposed his first cousin King Richard II (1377-1399), and was followed by his son King Henry V(1413-1422) and the latter's son King Henry VI (1422-1471). This line ended in 1471 when King Henry VI's son Edward of Westminster, Prince of Wales was killed at the Battle of Tewkesbury and when he himself was deposed
Johann Heynlin Sallust (1470-1471), the third the "Orationes" of Bessarion (1471), and the fourth was Fichet's own "Rhetorica" in 1471. The number of the works which they published from 1470 to 1472 amounts to some thirty works. At the end of 1472 or at the beginning of 1473, Heynlin and Fichet left the Sorbonne to settle on Rue Saint-Jacques. Two of their apprentices, Pierre de Kaysere (Petrus Caesaris) and Jean Stoll, established around the same time and on the same street their own competing printing press, with the emblem of the "Soufflet-Vert". The German humanist Johann Reuchlin attached himself to Heynlin, whom