In 1471 there was a curious attempt of the Scottish Parliament to displace the tressure.
The tressure should be double, but in this instance it is single.
Two instances are known in which the decoration of the tressure has differed from the usual conventional fleurs-de-lis.
The border surrounding the lion is heraldically known as the tressure.
This augmentation has been interpreted as a golden scocheon with the demi-lion within the Scottish tressure.
Within this border is a representation of the full coat-of-arms of Scotland—a lion rampant, within a tressure flory counter-flory.
The same rule, by the way, applies to the tressure, but not to the orle.
The first authentic illustration of the tressure in the arms of Scotland dates from the year 1260.
Tres′sured, having a tressure: arranged in the form of, or occupying the position of, a tressure.
Here the tressure was gules, as in the Royal arms, although the field on which it was placed was vert.