A vindication of the Duke of Modena from the charges of Mr. Gladstone, from official documents and other authentic sources /
Normanby, Constantine Henry Phipps,Marquess of,1797-1863.
London :  Bosworth & Harrison, 
1861.
Francesco V d'Austria-Este, Duke of Modena, 1819-1875.
Gladstone, W. E. (William Ewart), 1809-1898.