Flag of the Three Guarantees

Flag of the Three Guarantees
Proportion	2:3
Adopted	1821;

The Trigarante Flag or the Flag of the Three Guarantees of the Trigarante Army is considered the first official national flag, it was the flag of the royalist and insurgent armed forces that united under the so-called Plan of Iguala and was the work of the author of the Mexican independence Agustín de Iturbide, made in the city of Iguala by the tailor José Magdaleno Ocampo in the year 1821, in what Iturbide called "the first year of sovereignty."