"William the Conqueror exploded at his funeral.The short of it, the intestinal infection that killed him ended up eating up his body from the inside. All the gas from the decomposition was trapped in there, but as some people tried to fit him back into his coffin, his body exploded from the pressure. Guess he had to go out with a bang."
All this was loooong before 'we' became a kingdom in it's current form