Skip to main content

Spanish Colonial Official's Account of the Triangular Trade with England (c. 1726)


In the triangle trade system, English ships loaded with trade goods sailed to the west coast of Africa and exchanged their merchandise for African blacks, then made the deadly "Middle Passage" to either the plantations of the West Indies or the English colonies, where the slaves would be bartered for sugar or other agricultural products. The ships then returned to England, once again filled with valuable cargo. Conditions on these slave ships were preternaturally cruel with slaves crammed into tiny spaces between decks and fed only the poorest foods to maintain high profits margins. The mortality rate of such crossings sometimes exceeded twenty percent.

Laura M.Miller,
Vanderbilt University

See also Middle Passage ; Slave Trade ; Triangular Trade .

On June 21 of the same year (1721) the Southern Fleet of galleons left Cadiz under the command of Lieutenant General Baltasar de Guevara. Upon its arrival at Porto Bello in time for the annual Fair it encountered the Royal George, the first of the English license ships. Though allowed no more than 650 tons of cargo by the treaty of 1716, the vessel actually carried 975. General de Guevara forthwith intrusted to three license masters of the fleet the duty of measuring the hold of the English ship, but they could not prove the excess. Their failure was due in part to a confusion of the measurement in geometric feet, by which the dimensions of vessels are gauged, with the cubic handbreadths by which the tonnage is determined.

In part, also, another circumstance is responsible for the failure of the Spanish officers to detect any evidence of fraud, assuming, of course, the absence of collusion on their side. Apparently the vessel had no greater carrying capacity than 650 tons, but persons who are expert in the rules of naval construction know very well that the steer-age, commonly called "between-decks," equals in capacity a third of the hold, and the cabin a sixth of it; so when all three have been filled,—hold, steerage, and cabin,—the gross tonnage will be 975. The English ship always carried a cargo of this size. Indeed it was laden so heavily that its very gunwales were awash. Bundles and packages filled the hold, the steerage space was crowded with huge chests, and the cabin bulged with boxes and bales.

The English claimed that the materials stored in the steerage and cabin were furniture for the use of their trading houses, cloth goods for their agents and employees, and medicines and drugs for accidents and cures, but all of it was salable merchandise. Some things they could not conceal from the commander and the commercial representatives of the galleons. For example, many of the bales and bundles had not been pressed, the stitches in their seams were recent, and the ink of their lettering was still fresh. Hundreds of items, also, were lacking in the order of enumeration, which, if they had not been thrown overboard to lighten the ship during the course of the voyage, must have been put ashore somewhere. The proof soon appeared when the Spanish commissioner of trade asked to see the original bill of lading so that he might know by this means whether the cargo was in excess of the amount permitted. On the ground that the treaty had authorized no such procedure, the request was denied.

During the course of the Fair the agents of the Royal George sold their goods to the colonial tradesmen thirty percent cheaper than the Spanish merchants of the galleons could do. This advantage came from the fact that they had been able to bring the commodities directly from the place of manufacture, exempt from Spanish customs duties, convoy charges, transportation expenses, commissions, and the like. Even after the original contents of the ship had been disposed of, the supply was kept up by secret consignments of goods of English and European manufacture received from the packet boats and sloops engaged ostensibly in the slave trade.

Instead of bringing the negroes in the slave hulks directly from Africa to the ports specified in the Asiento, the English cunningly devised the plan of landing them first at their colony of Jamaica. Here the slaves were packed, along with divers kinds of merchandise, into small boats that made frequent sailings. Not only was the cargo of the Royal George thus replenished as rapidly as it was exhausted, but trade could be surreptitiously carried on at times when the Fair was not in progress, and the treasure of the Spanish colonies duly gathered into English hands.

Nor was this all of their duplicity. On the pretext that a number of bales and boxes stored in the warehouse at Porto Bello were an unsold residue of the cargo, the governor of Panama was asked for the privilege of bringing them to that city. In this fashion the English could legitimize goods that had already been smuggled into the warehouses at Panama and then proceed to sell them to the merchants of New Granada and to the traders on the vessels that plied along the Pacific coast. On one occasion in 1723, at the instance of the Spanish commissary, ten loads of twenty bales each of the supposed residue of the cargo of the Royal George were opened on the way from Porto Bello to Panama and found to contain nothing but stones, sticks, and straw.

A knavish trick connected with the slave trade should now be described. Having brought the negroes in a number of small boats to out-of-the-way places not authorized for the purpose in the Asiento, the English traders sold them for a third less than the prices at the regular trading stations. But since the treaty empowered them to seize, as smuggled goods, slaves brought in by individuals of other nations, they posted guards and sentinels in the outskirts of the spot where the sale had just taken place, and had the purchasers arrested. Many a thrifty-minded Spaniard who relished the thought of buying slaves at cheap rates fell into a snare from which he could not escape until he had paid the regular price in addition to what he had already given. In order to obscure the facts of these fraudulent transactions as thoroughly as possible, the English contrived a scheme craftier than any hitherto related. It seems that the Asiento had allowed them to appoint "judges-conservators" whose business it should be to defend their privileges against unlawful interference. In the exercise of this right they appointed to the office the local governors of the ports where the traffic was carried on, and gave them a salary of two thousand dollars a year, supplemented by special gratifications in the shape of European furniture, jewels, and delicacies. Thus were the officials pledged to connivance and silence. If any of the governors should decline to be bribed, he was threatened with political destruction by the letters and complaints which the English minister at the Spanish court would surely present to the home authorities. Few there were under such circumstances who were able to resist the frauds, preserve their honor, and uphold their good name.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Spanish Colonial Official's Account of the Triangular Trade with England (c. 1726)." Dictionary of American History. . (January 22, 2019).

"Spanish Colonial Official's Account of the Triangular Trade with England (c. 1726)." Dictionary of American History. . Retrieved January 22, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.