Some discrepancies in the birth dates of George and Jane Douglas. Perhaps Mary (Boyal) Douglas was not the mother for one of them and the said child was later legitimized by James Douglas.
Sources
Dictionary of National Biography, Volumes 1-20, 22 for Second Duke of James Douglas Duke of Dover, pp. 1228-1231
Johnston, George Harvey. "The Douglases of Drumlanrig, Queensberry and Kelhead." The Heraldry of the Douglases: With Notes on All the Males of the Family, Descriptions of the Arms, Plates and Pedigrees. Edinburgh: W. & A.K. Johnston, Limited, 1907. 21,22. Print.
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