A post about some of the grandchildren of Henry, earl of Lancaster(1280/81 – 22 September 1345), who was Edward II’s first cousin, Isabella of France’s uncle, Earl Thomas’s younger brother and heir,Blanche of Artois’s son, grandson and nephew of kings of England, great-grandson, brother-in-law and uncle of kings of France, half-brother of the queen of Navarre, and also descended from kings of Castile, Aragon and Germany and the Holy Roman and Byzantine emperors.