When Doroteo Bonifacio Lavallén Altéz was born on 5 June 1921, in Rocha, Uruguay, his father, VENANCIO MARGARITO PASCASIO LAVALLÉN, was 37 and his mother, Liboria Altéz Benencio, was 32. He married Rosa América Casanyes Sánches on 30 January 1969, in Rocha, Uruguay. He died on 1 September 1989, in his hometown, at the age of 68.