History of the Regency of Algiers
The Regency of Algiers began in 1516 when the corsair brothers Aruj and Hayreddin Barbarossa seized Algiers. They built a powerful pirate state that lived off privateering and the slave trade. Although it was technically part of the Ottoman Empire, Algiers acted mostly on its own and became a major base for Barbary corsairs in the western Mediterranean.
In 1520 the Ottoman sultan decided that Algiers would join the empire, and Hayreddin Barbarossa was made beyllerbey (a high Ottoman official). From then on, Algiers helped lead Ottoman naval power in the region. The city expanded its influence by allying with local tribes and by using its fast, well-armed fleet to raid Christian ships and coastal towns.
For more than a century, Algiers and the other Barbary states pressured Europe with privateering. They attacked ships, captured crews for ransom, and grew very wealthy from the trade in slaves and goods. Algiers also dictated terms to neighboring Tob and Tunis, sometimes demanding tribute and setting borders.
By the 17th century, Ottoman central control weakened. The beys, corsair captains (raïs), and the janissaries in Algiers competed for power. The coulouglis, Turkish-Algerian elites, tried to push aside the Turks, and several revolts followed. In 1659 the janissaries seized power from the pashas, creating a military republic. The divan, a two-chamber council of janissaries, elected the head of state for short terms, and corsair leaders gained real influence over policy.
The Barbary corsairs expanded their reach, raiding across the Mediterranean and even into the Atlantic. They relied on enslaved people for labor and used prize money from captured ships to fund their state. Algiers’ port and navy grew powerful, turning the city into a major trading and pirate center. European countries often negotiated peace or tribute with Algiers instead of risking a costly war.
Throughout the 17th and 18th centuries, Algiers fought and negotiated with Spain, France, England, the Dutch and others. The city’s rulers built a system of treaties that kept European powers at bay as long as tribute was paid. In the late 1600s and 1700s, Algiers faced new military pressures from France, but also gained temporary advantages through diplomacy and occasional victories at sea.
In 1748, Dey Mohamed Ibn Bekir issued the Fundamental Pact, which codified the rights of people in Algiers and set rules for the army. The Regency also benefited from powerful Jewish merchants who helped run trade and finance, adding to Algiers’ wealth and influence.
By the late 18th century and into the early 19th, Algiers faced internal turmoil, famine, and mutinies. Seven deys died in quick succession during a period of instability. Yet the state remained a bold privateering power, striking at European ships and demanding tribute.
The United States fought a Barbary War with Algiers (the first ever for the U.S.), and Decatur’s victory in 1815 pressured Algiers to seek terms. Britain’s 1816 bombardment further weakened the city. In 1827, a humiliating incident where the dey slapped the French consul with a fly whisk gave France a pretext to invade. French troops landed near Algiers in 1830, and Algiers surrendered on July 5, ending the Regency’s era.
This page was last edited on 3 February 2026, at 01:44 (CET).