 Charles IV's eldest son was restored to the throne.Again the title used was "king of Castile, Leon, Aragon,… by divine grace".After the Spanish Revolution of 1868 deposed Isabella II, there was established a provisional government and a regency headed by Francisco Serrano y Domínguez, who acted as Head of State, from October 8, 1868 until December 4, 1870 while it was requested a new monarch.