From the 1720s the island had been experiencing a series of short-lived but ongoing rebellions against its current sovereign, the Italian city-state of Genoa. During the initial period (1729–36) these merely sought to restore the control of the Spanish Empire; when this proved impossible, an independent Kingdom of Corsica (1736–40) was proclaimed, following the Enlightenment ideal of a written constitutional monarchy. But the perception grew that the monarchy had colluded with the invading power, a more radical group of reformers led by the Pasquale Paoli pushed for political overhaul, in the form of a constitutional and parliamentary republic inspired by the popular ideas of the Enlightenment.