This certainly merits investigation.I found that the name Sayle was the 28th most common surname on the Isle of Man, as of 1881, so clearly there's a concentration on the island far beyond that found elsewhere in the British Isles.
It's suggestive that Gov. Wm Sayle was a deeply religious man, a Puritan, who didn't mind getting in a boat and going to a new settlement.From the facts that he was governor of Bermuda, founder of a colony in the Bahamas (where Providence Island was originally called Sayle's Island), governor of Bermuda in a second term 1658-62, before heading for the mainland, it would not be surprising if he had a son who chose to settle in Virginia, where land was vastly more abundant than on Bermuda, and the soil more fertile than in the Bahamas.
Inasmuch as Gov. William Sayle was in Bermuda as early as 1630, and was "very aged" when named first Governor of the new Carolina colony in 1670, I suppose that his children would have been born between about 1620 and 1650.This is the right generation for our ancestor William Sale / Sayle (presumed father of Cornelius).So it seems perfectly plausible that our William might have been a son of Gov. William Sayle.... or if not, that he was from some other Sayle family of the Isle of Man.
I searched the IGI without finding anything definitive... no Cornelius Sayle at all. If I had found one, he would not be our direct ancestor, of course, as Cornelius of Essex Co. Va. was almost certainly born in Virginia.However, I always check unusual given names in this kind of situation to see if there's an antecedent further back in the family.Cornelius is more common among the Dutch and Irish than among the English, and in any event it could have come from Cornelius Sale's mother's family.
Still, William was the most common given name, and it seemed as though there was room to have had a William Sayle leave the island while other William Sayles stayed.With multiple William Sayles, and the many years of wills not abstracted, one might still find the link to our man on the Isle of Man.