Heraldic right and left

Interpreting the Sides in Heraldry

A coat of arms must always be viewed from the perspective of the armiger, as if it were borne on their breastplate. This means that what appears on the right side of the shield to the viewer actually represents the bearer’s left side—and vice versa. This is a fundamental rule in heraldry.

Heraldic Right (Dexter)

The heraldic right side appears on the viewer’s left. This side is considered primary and more honourable, as it traditionally carries a positive meaning, symbolising good fortune, nobility, and strength. Heraldic charges—such as lions—typically face or move toward the right; if they deviate from this (for example, if they turn to the left), this must be explicitly stated in the blazon.

Heraldic Left (Sinister)

The heraldic left side appears on the viewer’s right. This is the secondary, less favourable side, traditionally associated with misfortune or weakness. Heraldic charges here are also generally oriented toward the right; any deviation must likewise be specifically noted.

Symbolism of the Sides

In mythological and medieval thought, the right side symbolised good, while the left side represented evil. For example, in mystery plays, Heaven appeared on the right and Hell on the left. This worldview also influenced heraldic thinking.

Source: Wikipédia