History
The Empire of True Briton was an empire in the Europe of Earth-794 that ostensibly replaced the United Kingdom. It was ruled by the mastrex Opul Lun Sat-Yr-Nin and Kaptain Briton was her Konsort.
Captain Britain was transported there by the Technet after Kaptain Briton assumed his identity when he beat him in hand-to-hand combat at Braddock Manor. Opul Lun Sat-Yr-Nin assumed he was the real Kaptain Briton and was hailing him as a hero of the empire in front of a large crowd outside of her palace but he pleaded with Gatecrasher to return him to his own reality. She reluctantly agreed and they were forced to fight their way out of the palace.[1]