According to Brut y Tywysogion, Sweyn Godwinson was called in to help Gruffydd's brother Rhys against Gruffydd ap Rhydderch in 1045 to keep hold of Deheubarth. Gruffydd raided Leominster in 1052, resulting in the Battle of Llanllieni, the Welsh fighting against Normans and Anglo-Saxons.
According to ,Brut y Tywysogion, Sweyn Godwinson was called in to help Gruffydd's brother Rhys against Gruffydd ap Rhydderch in 1045 to keep hold of Deheubarth. Gruffydd raided Leominster in 1052, resulting in the Battle of Llanllieni the Welsh fighting against Normans and Anglo-Saxons.