Biography
William the Conqueror was the Duke of Normandy who invaded England in 1066, defeated King Harold at the Battle of Hastings, and became King of England. His conquest is one of the most consequential events in British history — transforming the English language, legal system, aristocracy, and governance over the following centuries.
William's wealth came from his complete control of England as a feudal king. He commissioned the Domesday Book in 1086 — the first comprehensive land survey in European history — essentially to know exactly what he owned. The survey recorded every landowner, their holdings, and their taxable value. According to historians' estimates, William personally owned about 20% of England's entire landed wealth.
His legacy shaped the English-speaking world more than almost any other individual. The Norman aristocracy he installed is the origin of many modern British noble families. French became the language of English courts for centuries. And his legal and administrative innovations formed the foundation of the English common law system.
Did You Know?
The Domesday Book commissioned by William in 1086 is still legally referenced in English property disputes today — making it the world's oldest surviving government census that remains legally relevant.