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Heraldry
From Discworld & Pratchett Wiki
This article will focus mainly on the difference between the rules of heraldry on the Discworld and our own Roundworld. To find more general information see Wikipedia.
A coat of arms consists of a shield as well as any supporters, crests and mottoes associated with it.
The Shield
The main focus of the coat of arms is the shield on which the main design is displayed. The shape of the shield itself is largely irrelevant. The right and left sides of the shield are called Dexter and Sinister respectively, however this can be misleading as the left and right are always considered from the point of view of the shield itself so its right (Dexter) is your left and so on. Use of the correct terms prevents confusion.
Colour
While a coat of arms can theoretically make use of any colour, heralds traditionally confine themselves to a fairly limited palette. In our world heralds have specific rules concerning the use of colour which seem to be much more relaxed in Discworld. The main tinctures are listed below.
| Shade | Name | Colour |
|---|---|---|
 | Or | Gold/Yellow |
 | Argent | Silver/white |
 | Azure | Blue |
 | Gules | Red |
 | Purpure | Purple |
 | Sable | Black |
 | Vert | Green |
