Most Faithful Majesty

The sobriquet Most Faithful King (Rex Fidelissimus) was a title awarded by the Pope as spiritual head of the Catholic Church to the Portuguese monarchy.

The title remains attached to monarchs descended from whoever received the original sobriquet. The sobriquet can be awarded to either a king or a queen.

The only European monarchy that has received the sobriquet Fidelissimus was the now-defunct monarchy of Portugal. King John V of Portugal was favoured with the title of Rex Fidelissimus in 1748 by Pope Benedict XIV.

See also

Topics related to the Portuguese Monarchy Major events Battle of São Mamede Battle of Ourique Treaty of Zamora Manifestis Probatum 1383–85 Crisis Battle of Aljubarrota Battle of Alfarrobeira Battle of Alcácer Quibir Portuguese succession crisis of 1580 War of the Portuguese Succession Iberian Union Forty Conspirators Portuguese Restoration War Transfer of the Portuguese Court Liberal Revolution of 1820 April Revolt Portuguese Civil War Municipal Library Elevator Coup Lisbon Regicide 5 October 1910 revolution Royalist attack on Chaves Monarchy of the North Royal Houses Portuguese House of Burgundy House of Aviz House of Habsburg House of Braganza House of Braganza-Saxe-Coburg and Gotha (disputed) Royal Residences Ajuda Palace São Jorge Alcáçova Belém Palace Buçaco Palace Évora Palace Mafra Palace Necessidades Palace Pena Palace Queluz Palace Quinta da Boa Vista Rio de Janeiro Palace Ramalhão Palace Ribeira Palace São Cristóvão Palace Santa Cruz Estate Sintra Palace Vila Viçosa Palace Miscellaneous Kingdom of Portugal Kingdom of the Algarve Kingdom of Brazil United Kingdom of Portugal, Brazil and the Algarves Portuguese Monarchs Line of succession to the former Portuguese throne Miguelism Sebastianism Portuguese Empire Portuguese Cortes Portuguese nobility List of titles and honours of the Portuguese Crown Council of Portugal Royal Pantheon of the House of Braganza Most Faithful Majesty Duarte Pio, Duke of Braganza (current pretender) Genealogical tree of the monarchs of Portugal Portuguese Crown Jewels Style of the monarchs of Portugal His Most Faithful Majesty's Council

Styles used by monarchs and royalty Monarchs & mediatised nobles Imperial and Royal Majesty (HI&RM) Imperial Majesty (HIM) Apostolic Majesty (HAM) Catholic Majesty (HCM) Most Christian Majesty (HMCM) Most Faithful Majesty (HFM) Britannic Majesty (HBM) Most Excellent Majesty Most Gracious Majesty Royal Majesty (HRM) Majesty (HM) Grace (HG) Royal Highness (HRH) Exalted Highness (HEH) Highness (HH) Most Eminent Highness (HMEH) Serene Highness (HSH) Illustrious Highness (HIll.H) Imperial Crown of Austria Members of sovereign/mediatised families Imperial and Royal Highness (HI&RH) Imperial Highness (HIH) Royal Highness (HRH) Grand Ducal Highness (HGDH) Highness (HH) Sultanic Highness (HSH) Ducal Serene Highness (HDSH) Serene Highness (HSH) Serenity (HS) Illustrious Highness (HIllH) Grace (HG) Excellency (HE)