"Carta de Antonio Taboada al Gral. Tomás O'Horan" (in Spanish). Letter to Tomás O'Horan. Redd, Kandace (5 May 2021). "A brief history of Cinco de Mayo,
The siege of Puebla occurred between 16 March and 17 May 1863 during the Second French intervention in Mexico, between forces of the Second French Empire
was executed on 19 June along with Generals Miguel Miramón and Tomás Mejía on the Cerro de las Campanas, outside Querétaro. Mexico City surrendered the
squad, alongside his generals Miguel Miramón and Tomás Mejía, on the morning of 19 June at the Cerro de las Campanas. Maximilian joined the army at Querétaro