History of the Duchy of Parma and Piacenza
The history of the Duchy of Parma and Piacenza, a former state on the Italian Peninsula whose capital was the city of Parma, begins in 1545 and ends in 1860. The duchy was established due to nepotism practised by Pope Paul III and was initially governed by the Farnese family, to which the pontiff belonged.
Source: Wikipedia — History of the Duchy of Parma and Piacenza (CC BY-SA 4.0)