Álvaro Carlos Alsogaray was born 22 June 1913 in Esperanza, Las Colonias, Provincia de Santa Fé, Argentina to Álvaro Enrique Alsogaray (1881-1935) and Julia Elisa Bosch (1885-1976) and died 1 April 2005 Ciudad de Buenos Aires, Provincia de Buenos Aires, Argentina of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| María Julia Alsogaray (1942-2017) | 8 October 1942 Ciudad de Buenos Aires, Provincia de Buenos Aires, Argentina | 24 September 2017 Ciudad de Buenos Aires, Provincia de Buenos Aires, Argentina | Francisco Javier Erize (1943) |
| Álvaro Luis Alsogaray (1944) | |||
| Eduardo Alsogaray (1946) | |||
Siblings