Biography of Maria Josefa Morales de los Rios, wife of fictional life that had a significant role in the struggle for independence, s istemáticamente ignored by historians, perhaps because of his close relationship with Jose de San Martin, who was a close friend.Reconstruction of Rodolfo Terragno from unpublished documents. * He had a prominent role during the English Invasions. * He fell prisoner and was brought to England. * Praised by Liniers. * Participated in the rooms where the May Revolution was conceived. * She was married to the man who led the overthrow of Cisneros. * He was about to be viceroy. * The Assembly of the year 13 granted an allowance for life. * It helped in the formation of the Army of the Andes. * Participated in the war against the Carrera. * Acted as a spy of San Martin. * It was his close friend. Incredibly Argentina's history has ignored Maria Josefa Morales de los Rios.No historian wrote about it. Rodolfo Terragno files investigated in Spain, England, Uruguay and Argentina, and obtained unpublished documents. The result of this work is the biography of a woman's romantic life that played a key role in the struggle for independence and a privileged place in the heart of San Martin.