The "Cabildo Abierto" of may 22, 1810, in the city of Buenos Aires (now part of Argentina, then part of the Viceroyalty of the Río de la Plata), where it was decided to remove the viceroy Baltasar Hidalgo de Cisneros
<bdi><a href="https://en.wikipedia.org/wiki/en:Pedro_Subercaseaux" class="extiw" title="w:en:Pedro Subercaseaux"><span title="Chilean painter (1880-1956)">Pedro Subercaseaux</span></a>
</bdi>
Museo Histórico Nacional