Charles I, Count of Flanders was a 12th-century ruler who governed Flanders from 1119 until his assassination in 1127. Born in Denmark to King Canute IV and Adela of Flanders, he was raised in the Flemish court following his father's death. During his reign, he was noted for his charitable efforts to combat famine, including distributing food and suppressing grain hoarding. His sudden murder by a group of knights during Mass at St. Donatian's Cathedral led to his immediate recognition as a martyr.