Their presence put an end to the plan for the invasion of the papal states, and Garibaldi unwillingly issued a decree for the plebiscite which was to sanction the incorporation of the Two Sicilies in the Italian realm.
In the 18th century concordats are numerous: there are two for Spain, in 1737 and 1753; two for the duchy of Milan, in 1757 and 1784; one for Poland, in 1736; five for Sardinia and Piedmont, in 1727, 1741, 1742, 1750 and 1770; and one for the kingdom of the Two Sicilies in 1741.
For the Two Sicilies, completed in 1834; lasted until the invasion of the kingdom of Naples by Piedmont.
But now the moment had arrived when this vast group of provinces, forming the future kingdom of the Two Sicilies, was about to enter definitely and decisively within the bounds of the Italian community.
This Norman conquest of the two Sicilies forms the most romantic episode in medieval Italian history.