Powys also had a strong ruler at this time in Madog ap Maredudd, but when his death in 1160 was quickly followed by the death of his heir, Llywelyn ap Madog, Powys was split into two parts and never subsequently reunited. In the south, Gruffydd ap Rhys was killed in 1137, but his four sons, who all ruled Deheubarth in turn, were eventually able to win back most of their grandfather's kingdom from the Normans. The youngest of the four, Rhys ap Gruffydd (The Lord Rhys) ruled from 1155 to 1197. In 1171 Rhys met King Henry II and came to an agreement with him whereby Rhys had to pay a tribute but was confirmed in all his conquests and was later named Justiciar of South Wales. Rhys held a festival of poetry and song at his court at Cardigan over Christmas 1176 which is generally regarded as the first recorded Eisteddfod. Owain Gwynedd's death led to the splitting of Gwynedd between his sons, while Rhys made Deheubarth dominant in Wales for a time.