Baltasar Hidalgo de Cisneros
The news of the fall of the Junta of Seville reached Buenos Aires in May 1810. With both the king of Spain and the Junta removed of power, many people thought that Cisneros had no legitimacy to govern, starting the May Revolution. Cisneros tried to calm down the population, to no avail. He called the commanders of the local armies and requested their support, but they denied it. Cisneros was ultimately forced to allow an open cabildo, which would discuss what to do. Although those meetings were usually composed of the wealthiest population, the army and a group of rioters plotted to prevent the entry of many wealthy people and allow common people instead.
Teodoro Sánchez de Bustamante
Sánchez de Bustamante took part in the 1809 uprising in Chuquisaca that pre-dated the 1810 May Revolution in Buenos Aires. The leader of the revolutionaries, Coronel Arenales, leader of the revolutionaries, named him captain in the "Compañía de Practicantes". The uprising was suppressed by Mariscal Nieto and the leaders captured and sent to Callao, but Sánchez de Bustamante managed to flee to Jujuy. He travelled to Buenos Aires soon after the May Revolution and met his friend Mariano Moreno. Moreno named him as attorney of the "Audiencia", a position which he held until 1811, before returning to his hometown as general assistant of the city's "Cabildo" and courts.