Eva 's autobiography , La Razón de mi Vida , contain no dates or references to childhood occurrences , and do not list the location of her birth or her name at birth . According to Junín 's civil registry , a birth certificate show that one María Eva Duarte was born on 7 May 1922 . Her baptismal certificate , however , list the date of birth as 7 May 1919 under the name Eva María Ibarguren . It is thought that in 1945 the adult Eva Perón created a forgery of her birth certificate for her marriage .