Ancestry of
John Quincy Adams
6th U.S. President
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- 17th Great-grandfather of John Quincy Adams — 20th Generation
- Ahnentafel No:
- 976904
- Father:
- Iarddur -----
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Tudor ap Madog (Ahnentafel No:488452 )
Madog ap Iarddur
View famous kin of Madog ap Iarddur
Scroll down to see sources.
Sources for Madog ap Iarddur
- 1 National Library of Wales, "Welsh Biography Online: Griffith of Penrhyn (Caerns)", (accessed 03/01/2010).