The name Sedrick is believed to have originated in England, derived from the Old English words "siede" meaning "side" and "ric" meaning "power" or "rule". It was likely a name given to those who held authority or power in their region.

The earliest known record of the name Sedrick dates back to the 11th century, where it appears in the Domesday Book, a great survey of England commissioned by William the Conqueror in 1086. This suggests the name was in use among the Anglo-Saxon population before the Norman conquest of England.

In the 12th century, a Sedrick of Essex was mentioned in the Pipe Rolls, which were financial records kept by the English Exchequer. This provides evidence of the name's continued use in medieval England.

One of the earliest known bearers of the name was Sedrick of Winchester, a monk and scholar who lived in the late 12th century. He is credited with writing several theological texts and contributing to the development of scholastic philosophy.

During the 13th century, a knight named Sedrick de Montfort fought alongside Simon de Montfort in the Second Barons' War against King Henry III. He was present at the Battle of Lewes in 1264, where the rebel forces emerged victorious.

In the 15th century, Sedrick Talbot was a prominent English soldier who served under King Henry VI during the latter stages of the Hundred Years' War. He was notable for his role in the Battle of Castillon in 1453, one of the final victories for the English in the conflict.

Another notable figure was Sedrick Walpole, an English diplomat and politician who lived in the 17th century. He served as a Member of Parliament and was involved in negotiating the Treaty of Utrecht, which ended the War of the Spanish Succession in 1713.