Listen to Gwenda talking to Roy Noble on BBC Radio Wales about the piece she prepared with the help of David Evans and Davey Owens.

"Anglesey has been called many names over the years.

The name Anglesey was developed in the Viking era and I think it may come from the word 'Ongull' meaning strait. Another suggestion I've heard for this is that 'Ongull' was indeed a Viking. I'm not sure who he was but there's no evidence that he owned land on the island. The 'ey' in Anglesey comes from the Old Norse meaning island.

Other names include the island of Mona, which may originate from when the Romans invaded the island. Who or what Mona was, I'm not sure. There's also a question mark over another name I've come across for Anglesey, Insula Opaca.

My favourite, though, is the reference to Anglesey as 'Môn Mam Cymru' (Anglesey Mother of Wales). This comes from the middle ages when the island was so fertile it formed the bread basket for the whole of north Wales."

Watch a video clip about the meaning of Anglesey.