Arthur Charles Fox-Davies,
A Complete Guide to Heraldry
(1909)
“ But the grandson on the death of his father, during the lifetime of the grandfather, and when the grandson succeeds as heir-apparent of the grandfather, succeeds also to the label of three points, which may therefore more properly be described as the difference mark of the heir-apparent than the difference mark of the eldest son. It is necessary, perhaps, having said this, to add the remark that heraldry knows no such thing as disinheritance, and heirship is an inalienable matter of blood descent, and not of worldly inheritance. No woman can ever be an heir-apparent. ”
