From Lincoln John travelled back towards East Anglia via Grimsby, Louth, Boston and Spalding. He arrived in Bishop’s Lynn on October 9th. Historians cannot be sure what John was planning but Lynn was an important port and John arranged to have supplies sent to his northern castles. It is reasonable to assume that he was planning a campaign in the north. John was taken ill whilst in Lynn. Ralph of Coggeshall assumed it was gluttony. Morris makes the very good point that at 49 the king had been setting a ferocious pace. He could simply have been exhausted.
In any event John set out once again for Lincolnshire on the 12th October. He travelled via Wisbech whilst his baggage appears to have taken a different and rather more disastrous route near Sutton Bridge. He spent that night in Swineshead Abbey where famously he ate rather too many peaches, pears and cider becoming ever more ill. Bereft of his household belongings and his treasures he arrived at the Bishop of Lincoln’s castle at Sleaford on the 14th October where he stayed overnight. On the 15th he wrote to Pope Honorius III (Innocent had died in July) that he was suffering from an ‘incurable infirmity.’ John took the opportunity to put his kingdom under the Church’s protection. This was a stratagem that he hoped would save England from Louis for Prince Henry who would shortly become King Henry III.
By then he was too ill to ride, so John was carried by litter to Newark – a journey of some twenty or so miles. He arrived at Newark on the 16th of October. He wrote his will and that night the king died having given Margaret de Lucy who was the daughter of William and Matilda de Braoze, permission to found a Hospital of St John along with land for its foundation in memory of her mother and brother who’d starved to death in Windsor. John’s will along with his tomb can be seen in Worcester Cathedral.