John II of Portugal vs Manuel I of Portugal

John II executed the Duke of Braganza for conspiracy and later personally stabbed the Duke of Viseu to death. These actions crushed the power of the high nobility, centralizing royal authority and eliminating internal opposition to his policies.

John II's committee of experts rejected Christopher Columbus's proposal for a westward voyage to Asia, judging the distance estimates to be inaccurate. This decision led Columbus to seek sponsorship from Spain, resulting in the Spanish discovery of the Americas.

John II sponsored Bartolomeu Dias's expedition that rounded the southern tip of Africa, naming it the Cape of Good Hope. This proved that a sea route to the Indian Ocean was possible, opening the way for future voyages to India.

John II negotiated the Treaty of Tordesillas with Spain, dividing the non-European world along a meridian 370 leagues west of the Cape Verde islands. This agreement secured Portuguese control over the route to India and later Brazil, shaping colonial boundaries for centuries.

John II commissioned the construction of a fleet and the preparation of a voyage to India under Vasco da Gama, though he died before the expedition departed. His planning and support for exploration laid the foundation for Portugal's maritime empire in Asia.

Manuel I ordered the expulsion of Jews from Portugal, but later forced them to convert to Christianity rather than leave. This created a large population of New Christians (conversos) and led to ongoing religious tensions and persecution.

Manuel I sponsored Vasco da Gama's expedition that reached Calicut in India, establishing the first direct sea route from Europe to Asia. This opened the spice trade to Portugal and broke the Venetian monopoly on Asian goods.

Pedro Álvares Cabral's fleet, sent by Manuel I to India, made landfall on the coast of Brazil. Manuel I claimed the territory for Portugal, initiating colonization and the exploitation of brazilwood, which later expanded into a major colony.

Manuel I commissioned the Jer

Manuel I sent a second fleet to India under Vasco da Gama, who bombarded Calicut and established Portuguese dominance in the Indian Ocean. This aggressive policy secured trading posts and forced local rulers to accept Portuguese terms.

Manuel I's governor Afonso de Albuquerque captured Goa from the Sultan of Bijapur. The city became the capital of Portuguese India, a strategic naval base, and a center for trade and missionary activity in Asia.