Marks of Cadency
Also known as "Differences"
Commonly used to indicate the various sons in a family, i.e., the eldest son during the lifetime of his father would bear a "Label" on his coat of arms. Below are the English brisures for sons. Daughters have no special brisures, and normally use their father's arms on a lozenge, together with any marks of cadency their father may use.
First Born: Label
A horizontal bar with three points aimed downwards. The label is removed upon the death of the father.
Fourth Born: Martlet
A footless swallow -- may signify one who has to subsist by virtue and merit, not inheritance.
Eighth Born: Cross Moline
Represents millrinds or millstones; signifies the mutual converse of human society.
Ninth Born: Double Quatrefoil
A quatrefoil is a representation of a four-leaf clover; brings good tidings.