Legend has it that King John of England was not felled by illness but by a monk’s revenge. Staying at Swineshead Abbey in Lincolnshire that October, John allegedly threatened to starve his own kingdom with crushing bread prices; a monk is said to have milked a toad for its venom, mixed it into a cup of ale, and drunk from it himself before serving the king, to prove the drink was safe. The monk reportedly died first in the abbey infirmary, and John followed him within hours.
The king, already infamous for the Magna Carta he was forced to sign and then tried to annul, died at Newark Castle on 19 October 1216 as a rebel army closed in on his crumbling kingdom. The poisoning story only surfaces in a chronicle written decades later for John’s old enemies, the barons; most contemporary accounts agree he died of dysentery, the far less dramatic verdict most historians still accept today.
