King Seisyll Of Seisyllwg Ap Clydog 
He had a biological son named Arthwyr Of Seisyllwg.
-
Personal Details
King Seisyll Of Seisyllwg Ap Clydog
Seisyll Of Seisyllwg was born in 0665. Seisyll Of Seisyllwg is no longer alive.
-
Children
King Arthwyr Of Seisyllwg Ap Seisyll
Arthwyr Of Seisyllwg was born in 0730 in Ceredigion, Wales. Arthwyr Of Seisyllwg is no longer alive.