Mexican general, Gregorio Ruiz, fought against the ensuing empire of the younger brother of the Austrian emperor Francis Joseph I, the only what of the Second Mexican Empire?
Gregorio Ruiz: Gregorio Ruiz was a Mexican general who participated in the Mexican Revolution. Gregorio Ruiz:  He fought against the French Intervention in Mexico and ensuing empire of Maximilian I of Mexico (1862–1867). Maximilian I of Mexico: Maximilian (Spanish: "Maximiliano"; born "Ferdinand Maximilian Joseph"; 6 July 1832 – 19 June 1867) was the only monarch of the Second Mexican Empire. Maximilian I of Mexico:  He was a younger brother of the Austrian emperor Francis Joseph I.
monarch