Cynddelw Brydydd Mawr
Cynddelw composed poems for a number of the later rulers of Powys , now divided into two parts , such as Owain Cyfeiliog and Gwenwynwyn . He also composed poems addressed to the rulers of Gwynedd and Deheubarth , and notably poems addressed to Owain Gwynedd and to his son Hywel ab Owain Gwynedd and later to Rhys ap Gruffudd of Deheubarth and to the young Llywelyn the Great . Poems and elegy to Lord Rhirid Flaidd of Penllyn . 
<triplet> Owain Gwynedd <subj> Hywel ab Owain Gwynedd <obj> child <triplet> Hywel ab Owain Gwynedd <subj> Owain Gwynedd <obj> father