In 1826, he married Carmen Mackenna, daughter of Brigadier Juan Mackenna, and they had thirteen children.
San Pedro Sula | Felix Mendelssohn | San Pedro | Felix Frankfurter | Pedro Almodóvar | San Pedro de Macorís | Pedro Infante | Felix the Cat | Pedro II of Brazil | Pedro Martínez | Félix Guattari | Pedro Vargas | San Pedro, Los Angeles | Pedro Rosselló | San Pedro Town | María Félix | Félix Trinidad | Felix Klein | Colégio Pedro II | Pedro Rodríguez | Pedro Fernández de Castro | Pedro Damián | Pedro Álvares Cabral | Julie Felix | Felix Rodriguez | Félix Houphouët-Boigny | Felix Da Housecat | San Pedro de Atacama | Point Pedro | Pedro Juan Caballero, Paraguay |
Benjamín Vicuña Mackenna was born in Santiago, the son of Pedro Félix Vicuña and Carmen Mackenna Vicuña, and grandson of General Juan Mackenna, hero of the Chilean War of Independence.