Francisco Javier de Errázuriz y Larraín or Francisco Javier Errázuriz Larraín, (Aranaz, Navarra, Spain, February 3 of 1711 - Santiago of Chile on September 8 of 1767), was a merchant, farmer, politician, Mayor and alderman chilenoIt is the trunk of one of the most important colonial families of Santiago to which many political and social advances were due.