In the winter of 1851, Juan Bravo Murillo became President of the Council of Ministers, forming a council with a remarkable technical training devoted in depth to the art of government and administration, moving away from the military rather than political government of General Narváez. This Council carried out an important economic sanitation; prepared a new administration reform; and normalized relations with the Holy See through the Concordat of 1851. But, undoubtedly, the task with more resonance was the preparation of a draft constitutional reform, however this suffered the rejection of progressive deputies, most of the moderates and the Queen Mother herself, who still had great influence on her daughter. All this ended up causing the resignation of the government in December 1852.