(Research):KINSHIP: Conflict/Error> Dwnn's 'Heraldic Visitations of Wales' volume 1 page 27 omits this generation from the name string.
KINSHIP: Conflict/Error> Dwnn's 'Heraldic Visitations of Wales' volume 1 page 29 inserts an extra generation between Llywelyn "Goch" and Llywelyn "Gaplan" called Ieuan.
KINSHIP: Conflict/Error> Dwnn's 'Heraldic Visitations of Wales' volume 1 page 49 inserts two extra generations between Llywelyn "Goch" and Llywelyn "Gaplan" called Llywelyn "Llwyd" ap Llywelyn "Fychan".
KINSHIP: Conflict/Error> Evan's 'British Genealogist' book 2 page B7 inserts two extra generations between Llywelyn "Goch" and Llywelyn "Gaplan" called Llywelyn "Llwyd" ap Llywelyn "Fychan".