Although there are no known descendants of these Azcuénaga, their legacy survived in the Presidential Residence (Quinta de Olivos), as well as in the two columns of the “Quinta San Antonio”, at the Vicente López Partido train station, in the Province of Buenos Aires; they survived the passage of time possibly because these two columns were located between the railway and the street, away from development.
The history of the Quinta de Olivos Presidential Residence has been published under the sponsorship of the Vicente López County.
In fact, the life of these two Basques is full of mysteries, from the intrigue (unspecified by contemporaries) in the Royal Palace of Spain that forced the emigration of Gaspar de Santa Coloma to the Río de la Plata, to Álzaga's idea to restore a monarchy.
Gaspar de Santa Coloma wrote in his memoirs, regarding the English invasions and the participation of Álzaga against them:[3] "Ah Cabildo of Buenos Aires!
Ah, don Martín de Álzaga, Mayor of First Vote, how much that night it was worked, how everything was arranged so that our enemies did not enter!"
Martín de Álzaga was a key participant in the commerce of the Virreinato, coming to be one of the richest men of that time.
Since contemporary witnesses, fearing retaliation, left little in writing about Álzaga's death, the details of the incident will likely remain unknown.
Gaspar educated Álzaga, as well as a prominent journalist and writer Esteban Echeverría, and several nephews, among them Juan Antonio of Santa Coloma.
Vítores lived in Arceniega, in Casería de la Campa (today Campijo), where Gaspar was born.
Gaspar had ordered Vítores to repair a church, construct a school and maintain a teacher, Juan Antonio de Palacio.
After the May Revolution of 1810 (the start of the Argentine War of Independence from Spain) Gaspar lost his power and properties; his fortune was taken by the government.
After being one of the most influential, powerful and rich personages of that time, he died on January 31, 1815, leaving little property to his wife Flora and his only son Francisco.