Seisyllt Ap Ednowain
Seisyllt Ap was born about 0938 in Wales.  Seisyllt Ap is no longer alive.

 Trawst Ferch Eliseg
Trawst Ferch was born about 0940.  Trawst Ferch is no longer alive.

 Llywelyn Ap Seisyllt
Llywelyn Ap was born about 0980 in Rhuddlan, Flintshire, Wales.  He died in 1023.