To counter that argument, from https://groups.google.com/g/soc.genealogy.medieval/c/uarH-xMVDbE?pli=1
“Annabella Stewart and the wives of George Gordon, 2nd Earl of Huntly.” Nov. 12, 2010
George Gordon, 2nd Earl of Huntly, Chancellor of Scotland (d. 8 June 1501), married Annabella, daughter of King James I, in 1459. He divorced her in 1471 and married Elizabeth Hay. The question of the identity of the mothers of his children has long vexed genealogists and will continue to do so. However, between the extremes of the one
claim, mentioned by Giovanni Ferreri (Ioannes Ferrerius), in Scotorum historiæ a prima gentis origine (Paris, 1574), cited by John Riddell,
in Tracts Legal and Historical (1835), p. 84, that Annabella’s only child was a daughter who married the Earl of Erroll, and Sir Robert
Gordon of Gordonstoun’s assertion, in his A Genealogical History of the Earldom of Sutherland (1813; originally written in the 17th
century), and repeated in William Gordon, The History of the Ancient, Noble, and Illustrious Family of Gordon (1726-1727) that Annabella
(whom he calls Lady Jane Stuart) was the mother of four sons and six daughters, we need to accept the undoubted probability that Annabella was the mother of more than one and less than ten.