Also, they still hold 3 out of the 4 kingdom titles of the isles (England, Wales, Scotland), so by CK2 rules, they can still hold the empire title.
Also, they still hold 3 out of the 4 kingdom titles of the isles (England, Wales, Scotland), so by CK2 rules, they can still hold the empire title.
Legacy language. It was an empire in the past.