Chwilio uwch
 


Wiliam Fychan ap Gwilym ap Gruffudd o’r Penrhyn

Ffurfiau: Wiliam, Wiliam Fychan, Wiliam
Cyfeiriadau: 52.8n, 56.31, 56.56, 56.66, 56.9–10n, 57.47, 57.8n, 60.28n