Privateering

A privateer was a private person or ship that engaged in maritime warfare under a commission of war. The commission, also known as a letter of marque, empowered the person to carry on all forms of hostility permissible at sea by the usages of war, including attacking foreign vessels during wartime and taking them as prizes. Captured ships were subject to condemnation and sale under prize law, with the proceeds divided between the privateer sponsors, shipowners, captains and crew. A percentage share usually went to the issuer of the commission. Since robbery under arms was common to seaborne trade, all merchant ships were already armed. During war, naval resources were auxiliary to operations on land so privateering was a way of subsidizing state power by mobilizing armed ships and sailors.

The letter of marque of a privateer would typically limit activity to one particular ship, and specified officers. Typically, the owners or captain would be required to post a performance bond. In the United Kingdom, letters of marque were revoked for various offences.

Some crews were treated as harshly as naval crews of the time, while others followed the comparatively relaxed rules of merchant ships. Some crews were made up of professional merchant seamen, others of pirates, debtors, and convicts. Some privateers ended up becoming pirates, not just in the eyes of their enemies but also of their own nations. William Kidd, for instance, began as a legitimate British privateer but was later hanged for piracy.

Among the corsairs that acted under authorization of his country they emphasize:

Entrepreneurs converted many different types of vessels into privateers, including obsolete warships and refitted merchant ships. The investors would arm the vessels and recruit large crews, much larger than a merchantman or a naval vessel would carry, in order to crew the prizes they captured. Privateers generally cruised independently, but it was not unknown for them to form squadrons, or to co-operate with the regular navy. A number of privateers were part of the English fleet that opposed the Spanish Armada in 1588. Privateers generally avoided encounters with warships, as such encounters would be at best unprofitable. Still, such encounters did occur. For instance, in 1815 Chasseur encountered HMS St Lawrence, herself a former American privateer, mistaking her for a merchantman until too late; in this instance, however, the privateer prevailed.

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