Llywelyn ap Seisyll
Llywelyn ap was born in 0980.  He died at the age of 43 in 1023.

 Angharad verch Maredydd
Angharad verch was born in 0982.

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