Born in Santiago, Cuba in 1841,[1] he was a former carpenter who later became a black folk hero, renowned for ending the business of slavehunter Miguel Pérez Céspedes.

After giving the order for the uprising to this province, Guillermón moved to Alto Songo, where he rose at dawn on February 24.

Despite being one of the protagonists of the events in Santiago, Cuba on August 26, 1879, where the Little War began, he did not join until four days after it attacked the La Borgita sugar mill.

Calixto García, being president of the Cuban Revolutionary Committee, appointed him head of the forces of the center and south of the Oriente province, with the rank of Major General.

[4] Guillermo Moncada died in 1895 of tuberculosis in his camp in Joturito, Mucaral, municipality of Alto Songo, Santiago de Cuba after spending years in harsh Spanish prisons.