Deheubarth
The ruler of Deheubarth was King Anarawd ap Gruffydd ap Rhys, who had ruled since 1137 and would continue to do so until 1143.
England
King Stephen (Stephen of Blois) was in competition with Empress Matilda for the crown of England.
Gwynedd
The ruler of Gwynedd was King Owain Gwynedd ap Gruffydd, who had ruled since 1137 and would continue to do so until 1170.
Scotland
The ruler of Scotland was King David I (David the Saint), who had ruled since 1124 and would continue to do so until 1153.