Medieval Banners & Heraldry

Why were banners important in the Middle Ages?

Medieval warfare was fought without modern communications. On a crowded battlefield, soldiers needed to know where their commander was, where their allies were positioned and which forces belonged to them.

A tall banner or standard could be seen above the heads of soldiers and could provide a visual rallying point. A lord's banner might identify his household, while a king's standard could mark his position and authority.

But medieval banners were about much more than battlefield practicality. They could represent power, family, land, loyalty and religious identity.

From ancient standards to medieval banners

Medieval banners developed from much older traditions of military standards. Ancient armies had already learned that a visible symbol carried above the battlefield could identify a unit or commander.

As European political structures changed after the Roman period, rulers, nobles, cities and religious institutions developed their own visual identities. Cloth banners became an increasingly important way of displaying those identities.

The result was not a single medieval flag system. Instead, there was a complicated mixture of personal standards, dynastic banners, military flags, city flags, religious banners and heraldic devices.

What was heraldry?

Heraldry was a system for identifying people and families through distinctive designs, colours and symbols. It became particularly important among European nobles during the High Middle Ages.

A heraldic design was normally displayed on a shield, but it could also appear on banners, clothing, horse coverings, seals and other objects.

This made heraldry extremely useful on the battlefield. A knight could be recognised not only by his face, which might be hidden by a helmet, but by the distinctive symbols displayed on his shield and equipment.

Over time, heraldry developed its own vocabulary and rules, allowing designs to be described accurately without relying on a picture.

Coats of arms

A coat of arms is a heraldic design associated with an individual, family, institution or territory. The shield is usually the central element, although a full achievement of arms can contain additional features such as a helmet, crest, supporters and motto.

The relationship between coats of arms and flags is important. Many historical and modern flags use heraldic shields or heraldic symbols because those designs were already associated with a particular territory or political authority.

However, a coat of arms and a flag are not the same thing. A coat of arms is a heraldic achievement or design; a flag is a physical emblem displayed on cloth or another material.

Colours and heraldic design

Medieval heraldry developed a distinctive set of colours known as tinctures. The principal heraldic colours traditionally include red, blue, black, green and purple, alongside the metals gold and silver, often represented as yellow and white.

Heraldic designs also used patterns, animals, crosses, stars, fleurs-de-lis, lions, eagles and many other charges.

Some of these symbols have survived directly into modern national flags. Others influenced later flag traditions indirectly by establishing the idea that a limited combination of colours and symbols could communicate identity.

Banners, standards and pennons

Medieval terminology was not always consistent, but different forms of flags and banners could have different shapes and purposes.

A banner could be a large rectangular flag associated with a noble or military leader. A pennon was generally a smaller, often pointed or swallow-tailed flag associated with a knight or lower-ranking heraldic identity.

A standard could be a long flag used to mark the position of a commander or important person. Its design and purpose were not necessarily the same as those of a heraldic banner.

Modern writers sometimes use these terms loosely, and historical terminology varied by period and region.

Knights and the battlefield

Knights provide one of the clearest examples of how heraldry and banners worked together.

A knight's shield could display his heraldic arms, while his horse might carry a matching cloth covering. A larger banner or pennon could provide another visible representation of his identity.

For soldiers serving under a particular lord, these symbols helped establish who commanded them. For opponents, they could identify important figures and make commanders visible targets.

The emotional importance of these symbols could be considerable. Capturing an enemy's banner could be treated as a significant military achievement, while losing one's own standard could be a serious blow to morale.

The Bayeux Tapestry

The Bayeux Tapestry is one of the most famous visual sources for understanding eleventh-century military banners and equipment.

The embroidered scenes depicting the Norman Conquest of England include numerous shields, standards and banners. They show how important visual symbols were to the armies of the period.

The tapestry should be treated as an artistic historical source rather than a perfect photographic record, but it provides valuable evidence for the types of symbols and equipment that were associated with warfare in the period.

Royal standards

Kings and other rulers could use distinctive standards to display their authority. These might contain heraldic arms or other symbols associated with a dynasty.

Royal heraldry was especially influential because the same arms could appear in many different places — on shields, banners, buildings, seals, coins and official documents.

When a territory later developed a flag based on its traditional arms, the flag could therefore inherit centuries of historical meaning.

Religious banners

Religion was another major source of medieval symbolism. Churches, monasteries, religious orders and armies could use banners featuring crosses, saints and other Christian imagery.

Military campaigns associated with the Crusades gave particular prominence to religious symbols on banners and shields. Different crosses and colour combinations became associated with particular groups and traditions.

Some symbols that became important to later national flags have roots in this mixture of religious, military and political imagery.

St George, St Andrew and the Nordic tradition

The medieval period is particularly important when looking at several flags that remain familiar today.

The St George's Cross became closely associated with England, while the St Andrew's Cross became associated with Scotland. These traditions later became components of the Union Flag.

The distinctive Nordic Cross pattern has a different historical development, with Denmark's Dannebrog traditionally regarded as the oldest of the Nordic national flags, followed by later Scandinavian designs influenced by the same basic cross arrangement.

These stories show how medieval religious and heraldic traditions could eventually become national symbols.

How heraldry influenced modern flags

The influence of medieval heraldry can still be seen across the world. Lions, eagles, crosses, stars, crowns, shields and heraldic colour combinations appear on national and regional flags.

Some countries use a direct heraldic design. Others have simplified older arms into a much cleaner flag.

The influence is especially obvious in European flags, but heraldic traditions also travelled through empires and colonial systems and influenced flag design in other parts of the world.

From dynastic symbols to national flags

The biggest change came as political identity moved away from being centred entirely on individual rulers and dynasties.

In the medieval world, a banner might say, in effect, "this belongs to this king or lord." With the development of modern nationalism, flags increasingly came to say "this represents this country and its people."

The transition was gradual rather than sudden. Existing colours, crosses and heraldic symbols were often retained because they already had deep historical associations.

This helps explain why many modern national flags look much older than the states that officially adopted them.

A short timeline

Why medieval banners still matter

Modern national flags can seem like simple graphic designs, but many are connected to centuries of symbolism.

The colours of a flag may come from a medieval coat of arms. A cross may have religious origins. An animal may have represented a dynasty. A pattern may have developed from a ruler's banner.

Understanding medieval banners and heraldry therefore makes it much easier to understand the flags we see today.

The modern flag did not appear from nowhere. It grew from a long tradition of using visible symbols to communicate identity, loyalty and authority.

Continue exploring Flag History

Sources & further reading

This article provides an educational overview of medieval banners and heraldry. Historical terminology varied between periods and regions, and the precise meaning of terms such as banner, standard and pennon was not always fixed.

For further reading, see the Encyclopaedia Britannica article on heraldry and collections and research relating to medieval manuscripts, heraldry and the Bayeux Tapestry.