One witness, solicitor Henry Burgess, grabbed the pistol off Bellingham. He was asked why he had shot the PM. "Want of redress of grievance," was the reply.
Quickly tried and found guilty of murder, Bellingham was hanged on May 18.
One of Britain's more obscure leaders, Perceval opposed hunting, gambling and drinking to excess. First Lord of the Treasury during the madness of King George III and the Luddite riots, he worked alongside William Wilberforce to abolish slavery.
Lord Blair of Boughton, a former Metropolitan Police Commissioner, recently expressed surprise "that there is no memorial to such a grave and unique event [as Perceval's assassination] within the precincts of Parliament".
In fact, Perceval's dramatic demise still echoes along the corridors of power. Lord Walpole, a hereditary peer, is a relative, describing him as a "great, great something uncle". And Henry Bellingham, a descendant of the assassin, is now a Foreign Office minister. Despite their history, Lord Walpole jokes that the pair are on speaking terms: "I think we can get over grudges like that."
In 1812, the country was very far from being plunged into a state of collective mourning by the murder of the Prime Minister. Letters released this week reveal crowds in Wolverhampton "rejoicing, by firing guns till near midnight". One correspondent feared that: "It cannot be long before some very serious event must take place."
Indeed, Bellingham himself gave a warning that all tenants of Downing St would do well to heed: "If the upper ranks of society are permitted to act wrong with impunity, the inferior ramifications will soon become wholly corrupted."
- Independent