The green tincture was left out of some heraldic works in the Middle Ages, but the first known English treatise, the Anglo-Norman "De Heraudie" (dated to sometime between 1230 and 1345), lists vert among the other tinctures. The French term
sinople was in use prior to the 15th century, but it did not refer to green, but rather to red, being identical in origin to
Cinnabar, originally the name of a red pigment also known as
sinopia. Descriptions of
knightly shields as painted at least partly green in
Arthurian romance are found earlier, even in the late 12th century. Here, the
Chevalier au Vert Escu ("knight with the green shield") often marks a kind of supernatural character outside of normal chivalric society (as is still the case with the English "
Green Knight" of c. 1390), perhaps in connection with the
Wild Man or
Green Man of medieval figurative art. The
Anglo-Norman prose Brut (c. 1200) has
Brutus of Troy bear a green shield,
Brutus Vert-Escu, Brutus Viride Scutum. Green is occasionally found in historical coats of arms (as opposed to the fictional "green knights" of Arthurian romance) from as early as the 13th century, but it remained rare, and indeed actively avoided, well into the 15th century, but becomes more common in the classical heraldry of the 16th and 17th centuries. According to Paweł Dudziński, the chairman of the Heraldic Committee within the Polish
Ministry of Interior and Administration, early heraldic green used to be bright, obtained from
verdigris pigment, which allowed contrast with
azure (obtained from dark
ultramarine pigment) in arms that contravened the
rule of tincture. An early example of a green
escutcheon was that of the coat of arms of
Styria, based on the banner of
Ottokar II of Bohemia (r. 1253–1278), described by chronist
Ottokar aus der Gaal (c. 1315) as: :
ein banier grüene als ein gras / darin ein pantel swebte / blanc, als ob ez lebte :"a banner green as grass, therein suspended a panther in white, [depicted] as if alive." A curious example occurs in an early armorial of the Burgundian Order of the Knights of the Golden Fleece (Toison d'Or) where the arms of the Lannoy family are recorded as "argent, three lions rampant sinople, etc." Despite the fact that sinople signified a shade of red in early heraldry, the lions in this 15th century manuscript are clearly green, although rather faded. The fugitive nature of the green pigments of that day may have had some influence on the low use of that colour in early heraldry. ==Classical heraldry==