Born in Mandelieu-la-Napoule, France, the third child of Pedro Henrique of Orléans-Braganza, and Princess Maria Elisabeth of Bavaria.

[citation needed] As with his two elder brothers, Bertrand was born in southern France, 1941, even though the exile imposed on the family had already been revoked, in 1920, due to the Second World War.

[citation needed] From a very young age he received Catholic formation, being guided by his father to the taste for the doctrinal study and the analysis of the national and international events.

[citation needed] His formation was completed with frequent trips to Europe, one of which took place during the entire First Session of the Second Vatican Council, when he took close contact with the Catholic intelligentsia to Rome for the great event.

After a spin-off occurred in the entity, he and his brother began to collaborate with members linked to the Plinio Corrêa de Oliveira Institute (IPCO) and the Founders' Association.

[8] They both played main roles during the campaign for the 1993 plebiscite, which represented the hitherto only real opportunity for a return of the monarchy since the proclamation of the republic, in 1889.

[9][10] In recent years, Bertrand is coordinator and spokesman of the movement Paz no Campo (Peace in the fields), and has traveled all over Brazil lecturing for farmers and entrepreneurs in defense of private property and free enterprise.

[19] Bertrand supports typically Traditionalist Catholic ideas: he opposes same-sex marriage, favours the illegality of abortion and is against the demarcation of indigenous territory in Brazil.