Where is Cádiz and what was it like around 1715?
Cádiz stands at the tip of a long, narrow strip of land that curls around a wide bay on Spain’s Atlantic coast, a short sail west of the Strait of Gibraltar. Its ancient names, Gadir and Gades, show how long sailors have used it.
The whole bay worked as one trading world. Cádiz and El Puerto de Santa María were the harbours, and the town of Jerez, inland, grew the wine. Cádiz had suffered for its wealth: an English and Dutch fleet sacked it in 1596, and another English attack failed in 1702. By the game’s years the city was growing rich again.
Why did Spain move the Indies trade from Seville to Cádiz?
In 1503 the Spanish crown set up the Casa de Contratación, or House of Trade, in Seville. It licensed every voyage to the Americas, collected the taxes, trained pilots and kept the records. Seville sits up the River Guadalquivir, and as ships grew larger they struggled to cross the sandbar at its mouth, near Sanlúcar.
So Cádiz took over in two steps. Around 1679 to 1680 the fleets began sailing from Cádiz, and the merchants of the bay won a third of the cargo space. Then in 1717 the government of Philip V moved the Casa itself, and the Consulado, the guild of merchants trading to the Indies. The royal decree is dated 8 May 1717 in the archives, though some accounts give 12 May. A royal official, José Patiño, was put in charge of both the Casa and the navy at Cádiz.
Seville did not give up. In 1725 it won an order to bring the Casa back, but the order was suspended within months, and the offices stayed in Cádiz.
How did the treasure fleets work from Cádiz?
Spain sent its trade across the Atlantic in armed convoys. The flota left in spring for Veracruz in Mexico. The galleons of Tierra Firme left in August for Cartagena and Portobelo. Both fleets met at Havana to sail home together, loaded with silver.
The fleets the game’s players know were struggling. In July 1715 the combined fleets left Havana for Spain and were wrecked off Florida, with more than a thousand deaths. There had been no silver fair at Portobelo since 1708. In 1720 Spain published a new plan to revive the fleets and reform their taxes. Meanwhile smugglers, French at first and later British, supplied much of what places such as Peru bought.
Who traded at Cádiz?
Officially the trade belonged to the Spanish merchants of the Consulado, but much of the cloth and other manufactured goods they shipped was made elsewhere in Europe, and foreign merchants settled in Cádiz to sell it. French traders grew strong there during the war of 1701 to 1714. After the peace of 1713, British merchants gained a foothold through the South Sea Company’s contract to sell enslaved Africans in Spanish America and its one permitted trading ship a year.
The bay also sent out its own produce. Its salt pans are older than the Romans; in the 1500s French ships loaded salt there, some of it for the cod fishery at Newfoundland. Jerez made wine. English drinkers had long called it “sherris sack”, and by Shakespeare’s time that had shortened to “sherry”.
Was there slavery in Cádiz?
Yes. The historian Arturo Morgado García calls 1650 to 1750 the great century of slavery in Cádiz. The burial records of just one Cádiz parish, Santa Cruz, list 2,736 enslaved people who died between 1683 and 1749. Many came from Africa, from Angola, Congo, Guinea, Cape Verde and Mina, often through Portuguese traders. Others were North African Muslims or subjects of the Ottoman Empire. Many worked in households, cleaning, washing and caring for their owners’ families.
Some won their freedom through an owner’s will, a letter of release, or by buying themselves. Records name Manuela Josepha, freed in 1710 after 32 years of service. Antonio Machuca, born in Guinea and enslaved in Seville, was baptised in 1733, later freed, and became a financier in Cádiz.
Captivity ran both ways in these waters. Corsairs from Salé and Algiers, licensed raiders, seized Spanish ships and held Christians for ransom, while Spain enslaved captured Muslims. In 1693 about a thousand Muslim captives were exchanged for a hundred Christians.
What happened to Cádiz later?
Cádiz kept its monopoly for about sixty years. Decrees of 1765 and 1778 let other Spanish ports trade with the Americas, and the Casa de Contratación was abolished in 1790. Many buildings in the old town date from this rich eighteenth century, including houses topped with lookout towers.
Legend or fact?
Legend says: Seville handled all the Americas trade until 1717.
Records show: The fleets were already sailing from Cádiz from about 1680. What moved in 1717 were the offices that ran the trade.
Legend says: The move to Cádiz was smooth and final.
Records show: Seville won an order in 1725 to take the Casa back. It was suspended within months, and Cádiz kept it.
Legend says: “Sack” was just an old word for sherry.
Records show: Sack meant several strong white wines from Spain and the Canary Islands. Jerez’s version was “sherris sack”, which became “sherry”.
Legend says: Spanish slavery happened only in the Americas.
Records show: Thousands of enslaved Africans, North Africans and others lived and worked in Cádiz itself between 1650 and 1750.
Legend says: Every Spanish ship flew the red Cross of Burgundy.
Records show: It flew over Spanish forts and with the army. Under the Bourbon kings from about 1700, the navy’s main flag was white with the royal arms.
Sources
- La política real y el traslado del Consulado en tiempos del régimen antiguo, Allan J. Kuethe, Studia Historica. Historia Moderna 39 no. 2 (2017). The decree of 8 May 1717, Patiño’s appointment, Cádiz as the fleets’ base by 1680, and Seville’s failed attempt to win the Casa back in 1725.
- Cádiz y el comercio ultramarino (ss. XVI–XVIII), Carlos Martínez Shaw, AWRAQ 21 (2023). The bay’s third of the fleets from 1679, the 1717 move, French merchants and the British foothold after 1713.
- The Casa de la Contratación in Seventeenth Century Cadiz, José Manuel Díaz Blanco, Studia Historica. Historia Moderna 39 no. 2 (2017). The Guadalquivir and Sanlúcar sandbar problems and the move of the fleets to Cádiz in 1680.
- La Bahía de Cádiz y la Carrera de Indias, 1503–1820, PORTUS Online. The bay as one trading complex with Jerez, the 1720 fleet plan and the decrees of 1765 and 1778.
- Casa de Contratación, Encyclopaedia Britannica. What the Casa did, its founding in 1503, the move in 1717 and abolition in 1790.
- Flota, Encyclopaedia Britannica. The routes and timing of the flota and galleons.
- Spanish Politics and Imperial Trade, 1700–1789, ch. 7, Geoffrey J. Walker (Macmillan) (1979). The 1720 plan, the long gap in Portobelo fairs and smuggling by French and British traders.
- Los libertos en el Cádiz de la Edad Moderna, Arturo Morgado García, Studia Historica. Historia Moderna 32 (2010). Enslaved and freed people in Cádiz: burial records, origins, examples of household work, Manuela Josepha, Antonio Machuca and the 1693 exchange.
- Review of Cádiz y el tráfico de esclavos (Sílex, 2018), Diego Caro Cancela, Trocadero 31 (2019). 1650 to 1750 as the great century of slavery in Cádiz, and African origins through Portuguese trade.
- The corsair state of Rabat-Salé, The National Archives (UK). Salé corsairs hunting Spanish ships near the Strait in the 1600s.
- The Nueva España fleets (1715), shipwrecks.es. The 1715 fleets leaving Havana for Spain and their wreck off Florida.
- El desarrollo de la ingeniería naval en España: 250 años de historia, R. Pérez Fernández and J. Pérez Martínez, Revista de Historia Naval 154 (2021). The naval academy at Cádiz in 1717 and the La Carraca shipyard.
- La Real Academia de Guardias Marinas, Rubén Bleda Martínez, Archivo Naval de Cartagena (Cátedra Naval). The academy’s founding in 1717 under Patiño and what cadets studied.
- The Spanish Flag, US National Park Service. The Cross of Burgundy over Spanish forts.
- Spain: ensigns from 1701, Flags of the World. The Bourbon navy’s white ensign with the royal arms.
- Wines, Michael Quinion, World Wide Words. Sack, sherris and the word sherry.
- Normandía y la sal de la bahía, alrededor de 1575, Francis Brumont, Revista Matagorda 3. Bay of Cádiz salt shipped to France and the Newfoundland fishery in the 1500s.
- Cádiz, Encyclopaedia Britannica. The city’s position on a narrow peninsula on the Atlantic, and its ancient names Gadir and Gades.
- Bahía de Cádiz Natural Park, andalucia.com. Salt taken from the bay since Phoenician times.
- Barbary pirate, Encyclopaedia Britannica. Corsairs of Algiers and Morocco and the captives they held.
- Cádiz, Wikipedia (citing Alonso Diez 1996, Barrientos García 2010 and the cathedral’s own history). Additional source: the 1596 sack, the 1702 attack, the city’s eighteenth-century growth and its merchants’ lookout towers.
- Sack (wine), Wikipedia (citing the Oxford Companion to Wine and Julian Jeffs, Sherry). Additional source: the different wines called sack.
Written for Silver & Sails. Facts last checked against these sources on 12 October 2026. Found a mistake? Tell us.