Explore the The man beside Carlos María de Bustamante (General Antonio de León y Loyola?) about the 1. The War of Independence (1810–21) of the Independence, Reform, Revolution Panel in this artwork.
= The man beside Carlos María de Bustamante (General Antonio de León y Loyola?) In the picture above, one resource suggests General Antonio de León  stands beside Carlos María de Bustamante. He was a famous son of Oaxaca born in Huajuapan de León, Oaxaca and in 1821 he funded and led an army that liberated the city of Oaxaca from Spanish rule. He also commanded the military in Oaxaca after Mexico was granted independence and in 1847 valiantly led Mexican troops in the Battle of Molino del Rey; although, he was killed and the victorious Americans advanced on Mexico City.
The picture below, the only available on the internet does not look like the man beside Bustamante but there is another image from a reputable source that cannot be posted here for copyright reasons and it does look like General Antonio de León. It can be seen here. And placing General Antonio de León beside Carlos María de Bustamante is logical because both represented Oaxaca, along with 10 others, in the Congreso Constituyente to write a new constitution for Mexico.
Oaxaca Mexica independence Congreso Constituyente