Lady Joan Jane Gascoigne (née de Neville; 1436 – 1486) was the 16th great-grandfather, classified as one of Cometan’s distant paternal ancestors in the McKerney family line. Born in Oversley Green, Warwickshire, Lady Joan married William Gascoigne III (1439 – 1464) and mother of Elizabeth Gascoigne (b. 1454). Lady Joan married her husband William in 1458 at the age of twenty-two.

In Cometanic ancestry, Lady Joan is categorised as part of the 18th generation retrograde, classifying him as a distant ancestor of Cometan. 

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