Researching Manx history back to 'the big bang' has convinced author Derek Winterbottom that American businessman David Drew Howe has absolutely no claim as King of Mann.
Mr Howe (pictured, right) is currently using the title to launch a new project aimed at helping AIDS orphans in Sub-Saharan Africa.
But Mr Winterbottom (left) - talking to Stuart Peters about his new book 'Profile of the Isle of Man' - says the claim shouldn't be taken too seriously:
"He enjoyed hearing the Manx national anthem!": King greets guests at Government House
His Majesty meets representatives of the Manx community at Garden Party
Crowds gathered in glorious sunshine to see the Monarch
Live blog: King Charles visits the Isle of Man
Updates from the Lord of Mann's first visit to the Island since ascending to the throne
King speaks of Island's 'enduring partnership' with the crown
King Charles III spoke in Tynwald this lunchtime