on 8 march 1972, jaime named gonzalo a knight of the order of the holy spirit and of the order of saint michael; the declarative letters patent were dated 21 september 1972. also on 21 september 1972 jaime gave gonzalo the title "duc d'aquitaine" (duke of aquitaine). he was given the grand cross of the order of saints maurice and lazarus by prince vittorio emanuele of savoy; the document of investiture referred to him as "duke of aquitaine".