In Yellow color the Kingdom borders
In Violet color the Kingdom borders with the sea
In Red color the borders with the foreign States
In Pale Blue color the territory of the Republic of Saint Marin
In Blue & White color the borders of Romagne
In Green color the main cities: Bologna, Ancona, Perugia and Rome

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(Original map taken from "Dagli Stati Preunitari al Regno D'Italia", vol. 1, ed. Sassone 1999)