A new constitution, authored by the "moderados" was written in 1845. It was backed by the new Narváez government begun in May 1844, led by General Ramón Narváez, one of the original architects of the revolution against Espartero. A series of reforms promulgated by Narváez's government attempted to stabilize the situation. The "cortes", which had been uneasy with the settlement with the "fueros" at the end of the First Carlist War, were anxious to centralize the administration. The law of 8 January 1845 did just that, stifling local autonomy in favor of Madrid; the act contributed to the revolt of 1847 and the revival of Carlism in the provinces. The Electoral Law of 1846 limited the suffrage to the wealthy and established a property bar for voting. In spite of Bravo and Narváez's efforts to suppress the unrest in Spain, which included lingering Carlist sentiments and "progressista" supporters of the old Espartero government, Spain's situation remained uneasy. A revolt led by Martín Zurbano in 1845 included the support of key generals, including Juan Prim, who was imprisoned by Narváez.