Rhys Mechyll Lord of Dynevor

✓ Rhys Mechyll (d.1244), Lord of Dynevor (Dinefwr), son and heir of Rhys Gryg; father of Gwenllian, wife of Gilbert Talbot, through whom the Talbots descend. Source: Complete Peerage XII/1 (2nd ed.) pp.606-614, TALBOT (pages supplied by Aynsley, 18 Oct 2026), p.609 note (b). [DIRECT ANCESTOR OF THE COMPILER: flag added 18 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]