Heraldic mark of the prime minister of Canada

The heraldic mark of the prime minister of Canada is granted to holders of the office who pursue an official personal coat of arms from the Canadian Heraldic Authority.

History
Presently, seven former prime ministers have official coats of arms featuring the mark. Chronologically they are: Joe Clark, Pierre Trudeau, John Turner, Brian Mulroney, Kim Campbell, Jean Chrétien, and Paul Martin.

In addition, three children of Paul Martin were granted differenced versions of their father’s arms, all of which continue to feature the prime minister’s mark, thus demonstrating its heritable nature.

Personal coats of arms
Prime ministers John A. Macdonald and Charles Tupper both had personal coats of arms, however neither feature the heraldic mark because the symbol had not been adopted during their tenure.