Sesiwn gan Delwyn Siôn i nodi Radio Cymru'n chwarae Plas y Brenin gan Hergest ar fore'r 3ydd o Ionawr 1977. On Radio Cymru's 40th birthday, Delwyn Siôn join Shân. Show more
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Sesiwn gan Delwyn Siôn i nodi Radio Cymru'n chwarae Plas y Brenin gan Hergest ar fore'r 3ydd o Ionawr 1977. On Radio Cymru's 40th birthday, Delwyn Siôn join Shân. Show more