They are the colours and design of the lord that soldier or knight fights for.
In medieval heraldry, shield colors, known as tinctures, held specific meanings and symbolism. For example, red often represented courage and valor, while blue symbolized loyalty and truth. Other colors, such as green for hope or perseverance and black for constancy or grief, conveyed values or characteristics associated with the knight or noble family. The use of these colors helped in identifying individuals and their allegiances in battle and tournaments.
A Shield to Protect a Knight from injurys
A knight needs a shield so that it can block things that are coming towards him. This is the Medieval wars.
In medieval heraldry, the colors of a shield, known as tinctures, held specific meanings. For example, gold (or) symbolized generosity, while silver (argent) represented peace and sincerity. Red (gules) indicated courage and valor, blue (azure) denoted strength and loyalty, and green (vert) signified hope and joy. These colors helped convey the values and ideals of the individuals or families represented by the shield.
A shield made of wood from a linden(basswood) tree.
Mantlet
A shield and sword
The medieval shield wasn't metal. It was wooden with a leather covering and a handle in the back to hold. Usually they were round and it was mainly used to deflect blows.
If you have a belt run it through the handle on the back of your shield and then buckle it. Sling that over a shoulder and across your chest with the shield to the back.
Mantlet
shield, lance, mace, broadsword,armor
he was a king who built a massive shield wall and lost to William