Idwal I Foel the Bald ap Anarawd
Idwal I Foel the Bald ap was born in 0883 in Aberffro, Malltraeth, Angelesey, Wales.  He died at the age of 59 in 0942 in Battle against the Anglo-Danes.

 Avandreg verch Merfyn
Avandreg verch was born in 0891 in Powys, Wales.  She died after 0917.

 Meurig ap Idwal Foel
Meurig ap Idwal was born in 0917 in Aberffro, Malltraeth, Angelesey, Wales.  He died at the age of 69 in 0986 in Aberffro, Malltraeth, Angelesey, Wales.

 Ieuaf (Levan) ap Idwal Foel
Ieuaf (Levan) ap Idwal was born before 0942 in Aberffro, Malltraeth, Angelesey, Wales.  He died about 0969.

 Rhodri ap Idwal Foel
Rhodri ap Idwal was born before 0942 in Aberffro, Malltraeth, Angelesey, Wales.