Corrections to "Plantagenet Ancestry" , Bevan Page 105 This page edited and hosted by Will Johnson, Professional Genealogist

Page 105 Bevan
13.Joan Whitney married (as his 2nd wife) Roger Vaughan, knt, of Porthaml. He married (1st) Eleanor Somerset, eldest daughter of Henry Somerset, Earl of Worcester. He died before 25 September 1514.

Remark : I do not believe that Roger of Porthaml was a knight. And since (as Richardson recognises) he died by 1514, he obviously did not marry Eleanor Somerset, whose father was married for the first time in that very year. The best account of this Vaughan family appears to be that in Bartrum 1400-1500 Drymbenog 2 (C3).
Contribution of Brice Clagett