Baldomero Espartero has proven a disappointment to the radical progresistas, who now ally with his conservative opponents under his military and political rival, Ramón María Narváez.

In a pronunciamiento led by Generals Narváez, Juan Prim and Francisco Serrano, an alliance of Moderates, Progressives, and Republicans moves against Espartero.

Narváez, representing the new alliance, seizes Madrid on July 15, obliging Espartero to flee to England.

Narváez is asked to form a government under Isabella II, who, thirteen years old on October 10, 1843, is declared of age, and Narváez becomes Lieutenant General of the Kingdom, inaugurating what will be known as the Moderate Era.