Deheubarth
The ruler of Deheubarth was King Gruffydd ap Rhydderch ap Iestyn, who had ruled since 1045 and would continue to do so until 1055.
England
The ruler of England was King Eadweard III (Edward the Confessor), who had ruled since 1042 and would continue to do so until 1066.
Gwynedd
The ruler of Gwynedd was King Gruffydd ap Llywelyn, who had ruled since 1039 and would continue to do so until 1063.
Scotland
The ruler of Scotland was King Macbeth (The Red King), who had ruled since 1040 and would continue to do so until 1057.