Ransom is the practice of holding a prisoner or item to extort money or property to secure their release, or the sum of money involved in such a practice. When ransom means "payment", the word comes via Old French rançon from Latin redemptio, 'buying back'; compare "redemption". Julius Caesar was captured by pirates near the island of Pharmacusa, and held until someone paid 50 talents to free him. In Europe during the Middle Ages, ransom became an important custom of chivalric warfare. An important knight, especially nobility or royalty, was worth a significant sum of money if captured, but nothing if he was killed. For this reason, the practice of ransom contributed to the development of heraldry, which allowed knights to advertise their identities, and by implication their ransom value, and made them less likely to be killed out of hand. Examples include Richard the Lion Heart and Bertrand du Guesclin. In 1532, Francisco Pizarro was paid a ransom amounting to a roomful of gold by the Inca Empire before having their leader Atahualpa, his victim, executed in a rigged trial. The ransom payment received by Pizarro is recognized as the largest ever paid to a single individual, probably over 2.3 billion at 1990 prices—in goods and hard currency. Those ransomed were valued on a sliding scale, ranging from around 1,875 DM for a worker to around 11,250 DM for a physician. For a while, payments were made in kind using goods that were in short supply in East Germany, such as oranges, bananas, coffee, and medical drugs.