He took part in the defense and reconquest of Buenos Aires during the English Invasions and carried out the Emancipatory campaigns under the command of General Manuel Belgrano.

[3] He also took part in the Argentine Civil War, serving in the ranks of the Unitarian Army participated in the Invasion of Lavalle to the Province of Buenos Aires.

[4] He was born in Buenos Aires, son of Luis Pelliza and María Molina, belonging to a distinguished Creole family.

[5] He did his elementary studies in the Colegio Real de San Carlos,[6] and began his military career during the first British invasions of the River Plate, serving in the Regiment of Patricians.

[17] His grandson Francisco María Canaveris (1827-1861) was a cavalry lieutenant[18] who took part in the war between the Argentine Confederation and the State of Buenos Aires.