Marquess, Marquis, Marchioness, [136]

Marriage, Heraldic Record of, [168]

Marshalling, [137], [159];
by Combination, [165];
by Quartering, [166];
Quartered Coats, [167];
Arms of Husband and Wife, [167], [171];
Crests, [174];
Helms, Coronets, Mantlings, Mottoes, Supporters, Badges, and Various Insignia, [174], [175]

Martel, [17], [137]

Martlet, [77], [137];
in Modern Cadency, [193]

Martin: Crest and Motto, [139]

Mary Tudor, Queen: Arms, [260];
Supporters, [264];
Badges, [229];
grants Derby House to the Heralds, [130]

Mary Stuart, Queen: Arms, [260]

Mary Stuart, Queen of Scots: her Signet, [265];
Heraldry of her Monument, [281]

Mary, The Princess, of Teck, [270]