Alba
The ruler of Alba was King Constantine II (Constantine the Middle-Aged), who had ruled since 900 and would continue to do so until 943.
Deheubarth
The ruler of Deheubarth was King Hywel ap Cadell ap Rhodri (Hywel the Good), who had ruled since 920 and would continue to do so until 950.
England
The ruler of England was King Eadmund I (Eadmund the Magnificent), who had ruled since 939 and would continue to do so until 946.
Gwynedd
This year was the last year of the rule of King Idwal ab Anarawd (Idwal the Bald).
Jórvík
The ruler of Jórvík was King Olaf Sigtryggsson, who had ruled since 941 and would continue to do so until 944.
Strathclyde
The ruler of Strathclyde at this time was likely to have been King Dyfnwal map Owain.