Douglas Richardson, 16 Feb 2017, <a href="http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/2017-02/1487268774">post to soc.genealogy.medieval</a>.: NH genealogy

Source Information

Title	Douglas Richardson, 16 Feb 2017, post to soc.genealogy.medieval.
Source ID	S1449
Linked to	Gruffydd ap Cynan ab Iago, King of Gwynedd Madog ap Maredudd, Prince of Powys Fadog Susanna ferch Gruffydd ap Cynan

Nielsen Hayden genealogy