Duchy of Reggio

Source: Wikipedia, the free encyclopedia.
Map of the Duchy of Reggio in the 18th century

The Duchy of Reggio was one of the states that belonged to the Duchy of Modena and Reggio, ruled by the House of Este, in the north of Italy, in a territory now belonging to the Province of Reggio Emilia. The capital was Reggio.

The perimeter of the duchy was from the

Duchy of Parma, and the Marquisate of Mantua
.