The Jubilee Plot was a supposed assassination attempt by radical Irish nationalists on Queen Victoria during her Golden Jubilee, on 20 June 1887. Those who presented the idea of a plot claimed that the radicals intended to blow up Westminster Abbey, Queen Victoria and half the British Cabinet. The story was closely connected to a set of forged letters by Richard Pigott, which attempted to implicate Charles Stuart Parnell with supporting physical force Irish republicanism.