In order to escape his death sentence for this act (sentence of 27 February 1823), he fled to Spain, where he joined the ranks of the liberal constitutionalist forces from 1822–23. When, in the spring of the 1823, the Spanish revolution was put down by the French Army, general Rosaroll moved again, first to England and then to Greece, where the Greek War of Independence was raging. According to historian T. Gerozisis, which is based on the testimony of Dionysios Romas and Fotakos, Rosaroll's old acquaintance and friend from Zante, Theodoros Kolokotronis, intended to make him commander of ground forces. Before the interim government enacted this, Rosaroll died of typhus in Nauplia. His son César died fighting against the Austrians at Venice in 1849.