| Time | Style | Used by | Reason |
| 1128–1129 | By the Grace of God, Duke of Portugal
| Afonso I | |
| 1129–1139 | By the Grace of God, Prince of Portugal
| Afonso I | |
| 1140–1189 | By the Grace of God, King of the Portuguese
| Afonso I, Sancho I | |
| 1189–1191 | By the Grace of God, King of Portugal and Silves
| Sancho I | Conquest of Silves |
| 1191–1248 | By the Grace of God, King of Portugal
| Sancho I, Afonso II, Sancho II | Loss of Silves to the Almohads |
| 1248–1249 | By the Grace of God, King of Portugal and Count of Boulogne
| Afonso III | Afonso, married to Matilda II, Countess of Boulogne-sur-Mer, succeeds his brother Sancho on the Portuguese throne |
| 1249–1253 | By the Grace of God, King of Portugal and the Algarve, Count of Boulogne
| Afonso III | Conquest of the Moorish kingdom of the Algarve |
| 1253–1369 | By the Grace of God, King of Portugal and the Algarve
| Afonso III, Denis, Afonso IV, Peter I, Ferdinand I | Afonso III repudiates Matilda and relinquishes his title of Count |
| 1369–1371 | By the Grace of God, King of Castile, León, Portugal, Toledo, Galicia, Seville, Córdoba, Murcia, Jaén, the Algarve, and Algeciras and Lord of Molina | Ferdinand I | Ferndinand I of Portugal is a pretender to the Castilian Crown, being a legitimate great-grandson of Sancho IV of Castile |
| 1371–1383 | By the Grace of God, King of Portugal and the Algarve | Ferdinand I | Renunciation of Castilian titles after the Peace of Alcoutim |
| 1385–1415 | By the Grace of God, King of Portugal and the Algarve | John I | Election of the Portuguese king |
| 1415–1458 | By the Grace of God, King of Portugal and the Algarve and Lord of Ceuta | John I, Edward I, Afonso V | Conquest of Ceuta |
| 1458–1471 | By the Grace of God, King of Portugal and the Algarve and Lord of Ceuta and Alcácer in Africa | Afonso V | Conquest of El Ksar as-Saghir (Alcácer-Ceguer) |
| 1471–1475 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa | Afonso V | Conquest of Asilah and Tangiers and elevation of the Portuguese lordship in northern Africa to the condition of Kingdom of the Algarve Beyond the Sea |
| 1475–1479 | By the Grace of God, King of Castile, León, Portugal, Toledo, Galicia, Seville, Cordoba, Jaén, Murcia, the Algarves on this side of the seas and beyond them in Africa, Gibraltar, and Algeciras and Lord of Biscay and Molina | Afonso V | Pretension of Afonso V to the Castilian Crown, due to his marriage with Joan, Princess of Castile |
| 1479–1485 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa | Afonso V, John II | Renunciation of the Castilian titles after the Treaty of Alcáçovas |
| 1485–1499 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa and Lord of Guinea | John II, Manuel I | Creation of the Lordship of Guinea, comprising the Portuguese colonies on the Gulf of Guinea |
| 1499–1580 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Manuel I, John III, Sebastian, Henry, António, Prior of Crato | The return of Vasco da Gama from India in 1499 |
| 1581–1640 | By the Grace of God, King of Castile, León, Aragon, the two Sicilies, Jerusalem, Portugal, Navarre, Granada, Toledo, Valencia, Galicia, Majorca, Seville, Sardinia, Cordoba, Corsica, Murcia, Jaén, the Algarves, Algeciras, Gibraltar, the Canary Islands, the Eastern & Western Indies, and the Islands & Mainland of the Ocean Sea, Count of Barcelona, Lord of Biscay and Molina, Duke of Athens and Neopatria, Count of Roussillon and Cerdagne, Margrave of Oristano and Goceano, Archduke of Austria, Duke of Burgundy, Brabant, and Milan, Count of Habsburg, Flanders, Tyrol, etc. | Philip I, Philip II, Philip III | Personal union with Spain |
| 1640–1815 | By the Grace of God, King of Portugal and the Algarves before and beyond the sea in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc.
| John IV, Afonso VI, Peter II, João V, Joseph I, Maria I | Restoration of an independent Portugal |
| 1815–1822 | By the Grace of God, King of the United Kingdom of Portugal, Brazil and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Maria I, John VI | Creation of the Kingdom of Brazil |
| 1822–1823 | By the Grace of God and by the Constitution of the Monarchy, King of the United Kingdom of Portugal, Brazil and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | John VI | Approval of the first Portuguese Constitution |
| 1823–1825 | By the Grace of God, King of the United Kingdom of Portugal, Brazil and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | John VI | Suspension of the first Portuguese Constitution after the Vilafrancada coup |
| 1825–1826 | By the Grace of God, Emperor of Brazil, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | John VI | Brazilian independence |
| 1826 | By the Grace of God and Unanimous Acclamation of the People, Constitutional Emperor and Perpetual Defender of Brazil, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Pedro IV | Personal Union of Portugal and Brazil |
| 1826–1838 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Maria II, Miguel I, Maria II | Peter's abdication of Portugal |
| 1838–1842 | By the Grace of God and by the Constitution of the Monarchy, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Maria II | The Portuguese Constitution of 1838 |
| 1842–1910 | By the Grace of God, King of Portugal and the Algarves on this side of the seas and beyond them in Africa, Lord of Guinea and of Conquest, Navigation, and Commerce of Ethiopia, Arabia, Persia, and India, etc. | Maria II, Pedro V, Luís I, Carlos I, Manuel II | The Portuguese Constitutional Chart of 1826 was restored |