HARO Y TAMARIZ, Antonio de, Mexican politician, born in San Luis Potosi in 1810; died in Europe about 1872. He was one of the chiefs of the conservative party, and for some time secretary of the treasury under Santa Anna. In 1854 he declared against the dictator, and put himself at the head of a revolution in San Luis Potosi, while Vidaurri did the same in the north, and Comonfort and Alvarez in the south; but Haro did not fully accept the liberal principles of the latter, and, while proclaiming the deposition of Santa Anna, demanded guarantees for the clergy and the army, and the convocation of a congress. After the fall of the dictator he refused to recognize the authority of the provisional president, Carrera, but declared in favor of the junta of Cuernavaca, and recognized Comonfort as president, after the resignation of Alvarez. But he soon joined the conservative opposition, and in January, 1856, was arrested and accused of a conspiracy to establish an empire either in his own favor or that of a son of Iturbide. He was taken to Vera Cruz, whence he was to be sent as an exile, but escaped, joined the clerical forces in Puebla, and was given the title of general-in-chief of the army. Puebla was soon besieged by the government troops, and, although Haro defended the city obstinately, democratic ideas began to spread in the garrison, and the soldiers opened the gates to the besiegers toward the end of March, 1856. Haro was taken prisoner, carried to Mexico, and sent into exile, where he died.