In May 1859 Ferdinand died, and was succeeded by his son, Francis II., who came to the throne just as the Franco-Sardinian victories in Lombardy were sounding the death-knell Frances 11.
The opening of the Suez Canal in 1869, followed by the establishment of direct steam communication between Spain and the Philippines, sounded the death knell of the peaceful outside the city, but were unsuccessful.
The violent end to the Jacobite rising of 1745 also sounded the death knell of Highland society.
The security breach and the violence in Parliament Square overshadowed the vote itself which anti-hunting campaigners hope will signal the death knell of foxhunting.
Incidentally, those who predicted the smoking ban would spell the death knell of the Irish pub couldn't have been more wrong.