The famous ruler of England during the Spanish Armada was Queen Elizabeth I. Reigning from 1558 to 1603, Elizabeth I is well-known for her role in successfully defending England against the Spanish Armada in 1588. Her leadership and strategic decisions, alongside the courage of the English fleet, led to a significant victory against the larger and better-equipped Spanish forces. This triumph not only bolstered national pride but also established England as a formidable maritime power. Elizabeth's reign, often referred to as the Elizabethan Era, is characterized by a flourishing of English culture, exploration, and the arts, marking a pivotal time in British history.