The battle in 1066 that marked the beginning of Norman rule in England was the Battle of Hastings. Fought on October 14, this decisive battle pitted the Norman forces led by William the Conqueror against the Anglo-Saxon army commanded by King Harold II. Following Harold's quick succession to the throne after Edward the Confessor's death, William asserted his claim to the English crown. The battle culminated in Harold's death and the subsequent Norman victory led to the establishment of Norman rule in England. The event significantly altered the English social structure, culture, and language, laying the foundation for modern England.