Llywelyn ap Seisyll
He died in 1023.

 Angharad verch Maredudd
Angharad verch was born in 0982 in Deheubarth, Wales.  She died after 1011.

 Gruffydd ap Llywelyn
Gruffydd ap was born in 1011 in Rhuddlan, Flintshire, Wales.  He died at the age of 52 on August 5th, 1063.