Juan de Garay (1528–1583) was a Spanish conquistador. He served under the Crown of Castille, in the Viceroyalty of Peru. He was governor of Asunción (present day Paraguay) and founded a number of cities in present-day Argentina, many near the Paraná River area, including the second foundation of Buenos Aires, in 1580.

https://en.wikipedia.org/wiki/Juan_de_Garay

Juan de Garay

Kentucky Pizzeria Bar

Historia bancaria e institucional. Monetario y colección de papel moneda argentinos (nacionales, provinciales y privados), emisiones coloniales de Potosí. Medallística, mobiliario, iconografía.(1565-1990)

Museo Histórico y Numismático del Banco de la Nación Argentina

Puro

Date of the foundation of the City of the Trinity and Port of Santa Maria of the Buenos Aires, by Juan de Garay.

11 de Junio de 1580