カノッサの屈辱
The province is home to the historical Canossa Castle, property of the countess Matilde; it is where the Walk to Canossa of Henry IV occurred. Representatives of the free municipalities of Reggio, Modena, Bologna and Ferrara met in Reggio Emilia's Sala del Tricolore in 1797 to proclaim the Repubblica Cispadana, adopting the three colour green-white-red flag to represent their newly formed Republic; it was later adopted in 1848 as the national flag.