Goronwy Ap Ieuan Ap Gruffydd
Goronwy Ap Ieuan Ap was born in 1399 in Gwynfryn, Llanystumdwy Lleyn, Wales.¹ 

 Eleanor Puleston
Eleanor was born in 1400 in Anglesey, Wales.¹ 

 Gwenhwfar Ferch Goronwy
Gwenhwfar Ferch was born in 1412 in Gwynfryn, Llanystumdwy Lleyn, Wales.¹ 

 Gwenhyfer Verch Ap Einion
Gwenhyfer Verch Ap was born in Gelli Iorweth, Trawsfynydd, Merioneth, Wales.¹   She died in 1416.¹ 

 John Ap Grufydd Ap Gruffydd
John Ap Grufydd Ap was born in Rhosgyll Fawr, Llanarmon.¹   He died in 1442.¹