Dwyn Duke of CORNWALL 
He had a biological son named Ithel (Ithyn) Duke of.
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Children
Ithel (Ithyn) Duke of CORNWALL
Ithel (Ithyn) Duke of was born about 0670. Ithel (Ithyn) Duke of is no longer alive.
Dwyn Duke of CORNWALL Ithel (Ithyn) Duke of CORNWALL