Most Faithful Majesty

Most Faithful Majesty was the style of address traditionally used by the King or Queen of Portugal. Most Faithful King (Rex Fidelissimus) was a title awarded by the Pope as spiritual head of the Catholic Church to the Portuguese monarchy.  In Portuguese it is spelt as Sua Majestade Fidelíssima. 

Examples
Queen Maria I was known as Her Most Faithful Majesty The Queen of the United Kingdom of Portugal, Brazil and the Algarves
Queen Mariana Victoria was known in later years as Her Most Faithful Majesty The Queen Mother of Portugal and the Algarves

Category:Styles (manners of address)
Category:Portuguese royalty