Saint Edward the Martyr was an English king who reigned from 975 to 978 AD. He was the son of King Edmund I and became king at a young age. His reign was marked by political instability and conflict, particularly with rival factions within the royal family. Edward was known for his piety and commitment to the Christian faith. He was murdered in 978, likely due to a power struggle involving his half-brother, Aethelred the Unready. Edward was later canonized as a saint by the Catholic Church, and his feast day is celebrated on March 18. His legacy is remembered for his virtuous life and tragic death.