On 9th February 1499, John, Viscount Welles, half-uncle of Henry VII and half-brother of Margaret Beaufort, died at his home, Pasmer’s Place, in Saint Sithes Lane, London. I have read that he died of pleurisy, but I do not know if that is true. Welles was also the husband of Lady Cicely/Cecily/Cecyll/Cecille Plantagenet, daughter…