| Plural phrase | Titles including phrase | Units |
|---|---|---|
| Britanniarum | Dux Britanniarum, Comes Britanniarum | Roman provinces: Britannia Prima, Britannia Secunda, Britannia Flavia, Britannia Maxima, Valentia |
| Rex Britanniarum | ||
| All the Russias | Czar of all the Russias | Great Russia, Little Russia, and White Russia |
| Two Sicilies | Kingdom of the Two Sicilies | Aragonese Kingdom of Sicily, Neapolitan Kingdom of Sicily |
