Sicilian Vespers, name given to a massacre of the French in Sicily at the hour of vespers on the eve of Easter Monday in 1282, the signal for the commencement being the first stroke of the vesper bell; the massacre included men and women and children to the number of 8000 souls, and was followed by others throughout the island.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Sibyl * Sicily