Mbanza was the capital of the Kingdom of Kongo and the seat of a powerful monarchy whose reach shaped economic life across the kingdom. With a population of about sixty thousand when the Portuguese first visited in 1483, it was comparable in size to Lisbon and larger than London. Later called São Salvador, the city became both a point of contact with European technologies and the center of an extractive political order that enriched the king and aristocracy while discouraging investment among ordinary people.

Capital and European Contact

When the mariner Diogo Cão visited Kongo in 1483, Mbanza stood at the center of a polity described as highly centralized by African standards. Its population—about sixty thousand—was approximately equal to that of Lisbon and exceeded London’s population of roughly fifty thousand in 1500. The city’s size and political importance made it a major seat of authority in the region.

The king, Nzinga a Nkuwu, converted to Catholicism and took the name João I. Mbanza was later renamed São Salvador. Portuguese contact also brought knowledge of the wheel and plow, and agricultural missions in 1491 and 1512 encouraged their adoption. These initiatives did not succeed. The failure, however, did not reflect a general rejection of unfamiliar technology: Kongolese people adopted firearms, as well as literacy, European dress styles, and house designs. The contrast directs attention away from a supposed cultural resistance and toward the conditions under which innovations could be used.

Royal Power and the Economy

Mbanza was the king’s seat, while an elite governed other parts of the kingdom as regional rulers. Their wealth rested on slave plantations around São Salvador and taxes collected from the rest of the country. Slavery supplied labor both to elite plantations and to Europeans on the coast; taxes could be arbitrary, including a levy imposed whenever the king’s beret fell off.

The political structure gave the king and aristocracy little constraint over property or people. The government provided few public services, including basic security for property and personal rights, and itself posed the greatest threat to them. The king also controlled long-distance trade and mercantile activity, which remained accessible only to his associates. Although the elite became literate after Portuguese writing was introduced, the king made no effort to extend literacy to the wider population.

Technology, Incentives, and Inequality

The wheel and plow were known in Kongo, but adoption efforts failed in a society where improvements to production could make farmers more vulnerable. A household that saved and invested in a plow could increase its output, yet that additional wealth was liable to be taken by the king and his elite. Rather than invest or bring goods to market, people moved villages away from roads and markets, seeking to reduce plunder and avoid slave traders. The location of the capital thus stood at the center of a political system that shaped behavior far beyond the city itself.

The same order that discouraged broad prosperity delivered wealth to those who held power. In the sixteenth century, the king and aristocracy could import European luxury goods and were surrounded by servants and enslaved people. The kingdom’s standing army helped preserve this arrangement: by the mid-seventeenth century, the king commanded five thousand troops, including a core of five hundred musketeers. The monarchy’s adoption of firearms was consistent with its need to maintain political control, even as most people lacked secure rights or a meaningful say in how society was organized.

A Capital at the Center of Extractive Institutions

Mbanza’s history connects urban scale and political centralization with sharply unequal outcomes. Kongo’s capital was comparable to major European cities, yet its size did not signal widely shared security or prosperity. The kingdom’s institutions concentrated trade, land, and coercive power in royal and aristocratic hands, leaving ordinary producers with weak incentives to invest and little protection from appropriation.

Reform that secured property and expanded economic opportunity could have made society as a whole more prosperous, but it threatened the elite’s wealth from plantations and the slave trade. Such reform would also have required curbing the king’s political power. The book therefore presents Mbanza and its later name, São Salvador, not simply as a city where European influence arrived, but as the capital through which Kongo’s political order organized both technological adoption and persistent poverty.