Pedro Díaz de Vivar y González de Buendía

Pedro Díaz de Vivar y González de Buendía (9 October 1740 — 1820) was a Spanish soldier and official who served in the Viceroyalty of Río de la Plata.

Biography Díaz de Vivar was born in the town of Fuensalida on October 9, 1740, the son of Lucas Díaz de Vivar and María González. He was a descendant of Rodrigo Díaz de Vivar, better known as El Cid.

Transferred to the Río de la Plata, he served as a soldier in the Buenos Aires Infantry Militia Battalion from 20 June 1761.

After the May Revolution, he lived retired from public life, dissatisfied with the new order of things. He died in the city of Buenos Aires in 1820.

Family On 6 October 1766, he married Josefa Salinas Valdés y Barrancos with whom he had two children: Julián Mario Vicente Díaz de Vivar y Salinas-Valdés María Francisca Javiera Díaz de Vivar y Salinas-Valdés, who married Ventura Miguel Marcó del Pont y Angel, Trustee of the Commerce Consulate of Buenos Aires, procurator trustee of the Cabildo of Buenos Aires, royal lieutenant and captain of the Urban Militias.

Other descendants include: Joaquín Díaz de Vivar, ambassador and legislator, vice president of the Legislature of the province of Corrientes, vice president of the Chamber of Deputies of the Argentine Nation between 1947 and 1955 and conventional constituent (1949). Mario Felipe Díaz, was the manager and assembly chief of the Gigante cement grinding plant in the Province of San Luis.

In the work of Carlos Calvo, titled: "Nobiliario del Antiguo Virreynato del Río de la Plata" (1936–1943), the author emblazons the arms of Díaz de Vivar as follows: "Gules, a tree of sinople plucked and threaded with gold and a lion of this metal passing through its trunk. Silver border and in gules letters the motto: "AVE MARÍA GRATIA PLENA DOMINUS TECUM."