Seisyll AP EDNNYWAIN
Seisyll was born in 0938.  He died at the age of 92 in 1030.

 Prawst VERCH ELSIE
Prawst was born in 0949.  She died at the age of 86 in 1035.

 Prince Llywelyn Of Deheubarth AP SEISYLL
Llywelyn Of Deheubarth was born in 0968 in Rhuddlan, Flint, Wales and his baptism took place in 1018.  He died at the age of 55 in 1023.