The precise style of British sovereigns has varied over the years. The present[update] style is officially proclaimed in two languages:[1][2]
Charles III, by the Grace of God of the United Kingdom of Great Britain and Northern Ireland and of His other Realms and Territories King, Head of the Commonwealth, Defender of the Faith[2]
Carolus III, Dei Gratia Britanniarum Regnorumque Suorum Ceterorum Rex, Consortionis Populorum Princeps, Fidei Defensor[2]