San Isidro Partido – Wikipedia

San Isidro is an affluent partido of Buenos Aires Province, Argentina found in the north of Greater Buenos Aires.Its capital is the city of San Isidro.It is 21 km (13 mi) from the city of Buenos Aires.. The founder of San Isidro was Domingo de Acassuso, who built a cathedral in 1706 dedicated to San Isidro Labrador, having seen him in a dream.  

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