Baldomero Fernández-Espartero y Álvarez de Toro was a Spanish marshal and statesman. He served as the Regent of the Realm, three times as Prime Minister and briefly as President of the Congress of Deputies. Throughout his life, he was endowed with a long list of titles such as Prince of Vergara, Duke of la Victoria, Count of Luchana, Viscount of Banderas and was also styled as "the Peacemaker".

The First Carlist War was a civil war in Spain from 1833 to 1840, the first of three Carlist Wars. It was fought between two factions over the succession to the throne and the nature of the Spanish monarchy: the conservative and devolutionist supporters of the late king's brother, Carlos de Borbón, became known as Carlists (carlistas), while the progressive and centralist supporters of the regent, Maria Christina, acting for Isabella II of Spain, were called Liberals (liberales), cristinos or isabelinos. Aside from being a war of succession about the question who the rightful successor to king Ferdinand VII of Spain was, the Carlists’ goal was the return to a traditional monarchy, while the Liberals sought to defend the constitutional monarchy.