Born in Buenos Aires, Brinzoni entered Military School on 1963, and trained as a paratrooper, qualifying in December 1964.
On December 13, 1999, President Fernando de la Rúa appointed Brinzoni as Army Chief-of-staff and a lieutenant general.
[1] After the return to democracy, he was accused of involvement in the Massacre of Margarita Belén, in which 22 political prisoners were executed on December 13, 1976.
Brinzoni courted further controversy when it was revealed that his lawyer during this period, Juan Enrique Torres Bande, was a member of the neo-Nazi New Triumph Party.
[2] Following Néstor Kirchner's inauguration as President in 2003, Brinzoni was retired and replaced by Roberto Bendini.