During the Hundred Years’ War many knights were able to go into battle fairly confident that they would survive. The ransom system meant that, should they surrender, provided the battle wasn’t being fought to the death or there had not been an order not to take prisoners by the other side, there was a good chance they would be taken prisoner and released later on payment of a ransom. This made the knights more valuable alive than dead.

The chivalric code was what made it possible for Christian knights to fight one another. Earlier the Anglo-Saxons and Norsemen killed or enslaved vanquished enemies, but this was not acceptable to the church when both sides were Christians. Often men fighting one another were related or friends and killing an opponent who surrendered in such circumstances wouldn’t always be well-received. Due to the way knights were trained they often knew one another well, having served as squires together or met at tournaments. The ransom system meant that they didn’t have to kill their friends.

Knights could still be killed, of course. It wasn’t always possible to take prisoners and prisoners who were to be ransomed had to be protected, which was often difficult in the midst of a battle. Knights were essentially killing machines. They were trained to kill and it could be quite hard to restrain them once they had started. In the heat of battle they could often carry on killing, even when the enemy was surrendering to them or retreating.

The ransom system was part of the chivalric code and it applied only to knights, not to the ordinary soldier. A knight who was captured in a battle or a siege could be expected to buy his freedom by paying a ransom, or having it paid for him. Sometimes he could be set free on parole by promising that he would not take up arms against the one who had set him free and that he would pay his ransom.

Some men became wealthy by capturing and ransoming knights. Others could become poor through paying a ransom. The ransom of Jean II, who was captured at the battle of Poitiers in 1356 almost brought France to its knees, even though half of it was never paid. Jean died in captivity after his son, who had taken his place in prison to allow his father to return to France to raise his ransom, escaped. Feeling the dishonour of his son’s action, Jean returned to England where he died a few months later.

If a man could not pay a ransom he was either kept prisoner or made to redeem his ransom in some other way. For many that meant being taken to another country. It could take a long time to raise the money required and, since a captive was considered the property of his captor, the son of the captor could inherit the captive on his father’s death.

There were laws governing how a prisoner could be captured and how he could be kept and ransomed. When a man was taken prisoner for ransom there was what amounted to a legal contract between the man captured and the man to whom he had surrendered. The captive was supposed to be taken to a place of safety and protected until the battle was over. If this didn’t happen he could consider himself no longer bound by his surrender and try to escape. He was also supposed to be well-treated by his captor. In this respect being captured by the Germans or Spanish was decidedly undesirable. They were known to keep their prisoners in chains and mistreat them, even if they expected to receive a ransom for them. The ransom itself was supposed to be within the means of the captured man to pay, although this was frequently not the case.

One of the attractions of fighting in France during the Hundred Years’ War for the English was that France was known to be full of wealthy men and many Englishmen became rich from taking prisoners, just as many Frenchmen became poor from paying for their release. For a novelist this is quite a useful device for enabling a second son without property to become rich (like Henry in The Winter Love) or penniless (like Richard in His Ransom).