Plate armour is a historical type of personal armour

Armour

Armour or armor is protective covering used to prevent damage from being inflicted to an object, individual or a vehicle through use of direct contact weapons or projectiles, usually during combat, or from damage caused by a potentially dangerous environment or action...

 made from iron

Iron

Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

 or steel

Steel

Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 plates.
While there are early predecessors such the Roman-era lorica segmentata

Lorica segmentata

The lōrīca segmentāta was a type of segmented armour almost exclusively used in the Roman Empire, but the Latin name was first used in the 16th century...

, full plate armour developed in Europe during the Late Middle Ages

Late Middle Ages

The Late Middle Ages was the period of European history generally comprising the 14th to the 16th century . The Late Middle Ages followed the High Middle Ages and preceded the onset of the early modern era ....

, especially in the context of the Hundred Years' War

Hundred Years' War

The Hundred Years' War was a series of separate wars waged from 1337 to 1453 by the House of Valois and the House of Plantagenet, also known as the House of Anjou, for the French throne, which had become vacant upon the extinction of the senior Capetian line of French kings...

, from the coat of plates

Coat of plates

A coat of plates is a form of torso armour consisting of metal plates sewn or riveted inside a cloth or leather garment. The coat of plates makes a fairly brief appearance in the history of European armour during the era of transitional armour, during a portion of the 14th century...

 worn over mail

Mail (armour)

Mail is a type of armour consisting of small metal rings linked together in a pattern to form a mesh.-History:Mail was a highly successful type of armour and was used by nearly every metalworking culture....

 suits during the 13th century. In Europe plate armour reached its peak in the late 15th and 16th centuries, with the full suits of Gothic plate armour

Gothic plate armour

Gothic plate armour is a type of plate armour of steel made in the regions of Germany and the Holy Roman Empire during the late Middle Ages . The armour provided full-body protection to the knight who wore it...

 worn on the battlefields of the Burgundian

Burgundian Wars

The Burgundian Wars were a conflict between the Dukes of Burgundy and the Kings of France, later involving the Old Swiss Confederacy, which would play a decisive role. Open war broke out in 1474, and in the following years the Duke of Burgundy, Charles the Bold, was defeated three times on the...

 and Italian Wars

Italian Wars

The Italian Wars, often referred to as the Great Italian Wars or the Great Wars of Italy and sometimes as the Habsburg–Valois Wars, were a series of conflicts from 1494 to 1559 that involved, at various times, most of the city-states of Italy, the Papal States, most of the major states of Western...

.