List of 1557 Major News Events in History, Most Important Historical Events in 1557
| Date | Event |
|---|---|
| April 30, 1557 | Mapuche leader Lautaro is killed by Spanish forces at the Battle of Mataquito in Chile. |
| July 6, 1557 | King Philip II of Spain, consort of Queen Mary I of England, sets out from Dover to war with France, which eventually resulted in the loss of the city of Calais, the last English possession on the continent, and Mary I never seeing her husband again. |
| August 10, 1557 | Battle of St. Quentin: Spanish victory over the French in the Italian War of 1551–59. |
| August 27, 1557 | The Battle of St. Quentin results in Emmanuel Philibert becoming Duke of Savoy. |