 Thus, at birth Pedro Henrique became claimant to the title of Prince of Grão-Pará, according to Article 105 of the defunct Constitution of 1824.He was baptized in the chapel of the Château d'Eu with the waters of the fountain taken from Largo da Carioca, in Rio de Janeiro.His godparents were his paternal grandmother, Princess Isabel of Brazil, and maternal grandfather Prince Alfonso, Count of Caserta, Head of the royal house of the Two Sicilies.