Why is the “Defender of the Faith” part of the Queens title only used in some countries?
In Canada, the United Kingdom, and New Zealand, “Defender of the Faith” (in Latin: fidei defensor) – the ancient phrase first granted in 1521 by Pope Leo X to King Henry VIII – is also included as a part of the royal title, and the sovereign is anointed as such in the only coronation that takes place in any of the realms, a ceremony in the context of a church service imbued with theological and constitutional symbolism and meaning, held at Westminster Abbey in London, United Kingdom.