Maria de Alvear (born 1960), Spanish-German composer living in Germany
Carlos María de Alvear (October 25, 1789 in Santo Ángel, Rio Grande do Sul – November 3, 1852 in New York, United States) was an Argentine soldier and statesman, Supreme Director of the United Provinces of the Río de la Plata in 1815.
The museum has its origins in a marriage in 1897 between two prominent members of turn-of-the-century Argentine high society: Matías Errazúriz, the son of Chilean émigrés, and Josefina de Alvear, the granddaughter of Independence-era leader Carlos María de Alvear.