 On May 21, the "Plaza de la Victoria" ("Victory Square", known today as Plaza de Mayo) was occupied by some 600 armed men, headed by Domingo French and Antonio Luis Beruti, under a group known as the ""chisperos"", who shouted requests for the forming of an open Cabildo and the deposement of Viceroy Cisneros.Alarmed by the commotion on the square, the viceroy agreed to a meeting for the following day and called Cornelio Saavedra, commander of the Patricios Regiment, to calm the citizenry at the square.Saavedra communicated to the ""chisperos"" that there would be an open cabildo on May 22 and asked them to stand down.