The following individual does not have a valid birth date and could not be added: Seven Generations of, of Leinster (I2543)
King Egbert (Ecgberht) (802 - 839)
King Aethelwulf (839 - 856)
King Aethelbert (860 - 866)
King Aethelred I (866 - 871)
King Alfred the Great (871 - 899)