It was a land that had Cornwall as its eastern border and now is the home to fishies and sunken galleons thanks to some cataclysmic flood that buried it beneath the waves and resigned its historical heritage to the realm of myths and legends.
So was Lyonesse a real place? Well I haven't got a clue, but it could have been a very real place after all where there is smoke there is usually a smoker.
The smoke in this instance comes from popular writings in the time of Elizabeth I and Lord Tennyson gave it a bit of a mention in his Arthurian epic "Idylls of the King" where he placed the final battle between Mordred and Knig Arthur (I know its meant to say King Arthur I just like replacing the word King with the word Knig).
I suppose that somewhere along the way the myth of Lyonesse (which was meant to be home to Sir Tristan in some interpretations of the Arthurian legend) merged with theÂ more long standing Celtic myths of sunken Kingdoms that are many in both Brythonic and Cornish traditions.
So lets just forget the name Lyonesse and concentrate on the validity of the mythological sunken lands off our coast.
Were there such lands off Cornwall?
Yes there were.
There is much evidence around the country and in Cornwall of tree stumps going out into the sea suggesting the sea levels were once much lower.
Cardigan bay in Wales and St Michaels Mount in Cornwall both have legends reaching back into the distant past speaking of sunken lands under the waves and the people who lived in these lands also are written about to some degree. But the interesting connection between St Michaels Mount and Cardigan Bay is that both have tree stumps going out into the sea that are revealed at low tide.
The old Cornish name for St Michaels Mount is Carrack Looz en Cooz which translates asÂ "The grey rock in the wood".
Of course all this does tie in with the Celtic shelf (no not a section in Tescos specialising in food from Wales, Ireland, Scotland and Cornwall) which would have been above sea level a few thousand years ago at a time when man could freely walk from England to France and then onto the rest of continental Europe.
Well there we go that's a very loose introduction to the land of Lyonesse that once stood proud and above the waters of island nation many moons ago and I am sure they had a rich culture and may have been as advanced as us today and had teabags and the Sinclair C5.