The County of Montechiarugolo was a small sovereign state of northern Italy which existed from 1456 to 1612. It included the other fief of Casei.
It was created from a splitting in the county of Guastalla between count Cristoforo Torelli and Pietro Guido I Torelli, first count of Montechiarugolo. The title was held by the Torelli family in his whole history, until in 1612 it was annexed by Ranuccio I Farnese, Duke of Parma following the beheading of Pio Torelli, his sister Clelia Torelli, and her husband for their involvement "Congiura dei feudatari" against Farnese.
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