Spanish Casa de Contratación

Timeline

1. 1503–1510Seville · AndalusiaIn 1503 the Castilian crown ordered the establishment of the Casa de Contratación in Seville, staffed with a Factor, a Tesorero, and clerks; early functions focused on cargo taxation, ship registration, and nautical record-keeping. Seville's inland shipping advantage on the Guadalquivir made it the sole legal departure port for transatlantic trade, giving the Casa administrative monopoly over all American trade.
2. 1511–1520Seville · AndalusiaBetween 1511 and 1520, major expansion events such as the colonization of Cuba (1511), exploration of the Isthmus of Panama, and Cortés's march on Mexico (1519) caused a sharp increase in cargo volume and administrative work. The Casa expanded its Escuela de Cosmografía, training official pilots and producing authoritative charts, while tightening identity checks on outgoing migrants and enforcing limpieza de sangre requirements. The Casa thus became the administrative backbone and knowledge hub of Spanish imperial affairs in the Americas.
3. 1521–1560Seville · AndalusiaAfter the conquests of Mexico (1521) and Peru (1532), the silver, gold, and precious goods supervised by the Casa increased sharply. The institution established the annual convoy system of the Carrera de Indias, effectively curbing pirate raids and ensuring continued collection of the royal quinto real. Seville thereby became one of Europe's largest entrepôt ports, and the Casa's system is regarded as an early prototype of the modern state trade agency, its operating logic deeply influencing the organizational design of the later English and Dutch East India Companies.