William's Origins and His Illegitimate Birth
William the Conqueror was born around 1027 or 1028 in Falaise, a town in the duchy of Normandy in northern present-day France, as the son of Robert I, Duke of Normandy, and Herleva, a woman of humble origins linked to a family in Falaise.
His birth out of wedlock marked his early years, as he inherited his father's rights to the duchy in a society where family legitimacy held great political importance, and from childhood, William had to defend his position against nobles who questioned his authority, while rivalries between aristocratic families threatened the stability of the territory.
Why Was William Called Bastard?
The nickname bastard stemmed from his birth out of wedlock, a circumstance that shaped his reputation throughout his life and which his adversaries used to question his legitimacy.
His father, Robert I, recognized him as heir before embarking on a pilgrimage to Jerusalem, during which he died in 1035, leaving William, still a child, in charge of a duchy ruled by a divided nobility, but the young heir's minority triggered years of violence, conspiracies, and struggles for control of Normandy, during which several of his protectors died and William himself had to learn to navigate a dangerous political environment.
With the support of some nobles and the authority of the French King Henry I, he managed to preserve his rights and gradually strengthen his position until he assumed effective control of the duchy.
Early Years as Duke of Normandy
During his youth, William consolidated his authority through campaigns against rebellious lords and agreements with influential families, while reorganizing the relations between the nobility and ducal power.
One of the decisive moments of this period was the Battle of Val-ès-Dunes, fought in 1047, where the forces loyal to the duke, backed by King Henry I of France, defeated several rebel nobles, for from then on, William expanded his ability to intervene in the affairs of the duchy and strengthened his control over fortifications and strategic territories, laying the political and military foundations that would later facilitate his expedition to England.
In 1053 he married Matilda of Flanders, who belonged to a powerful European family, and their marriage helped establish dynastic ties that strengthened his international position.
How Did He Conquer England in 1066?
The conquest of England began after the death of King Edward the Confessor, which occurred in January 1066, when Harold Godwinson was crowned monarch and William claimed the throne, alleging that Edward had promised him the succession and that Harold had sworn to respect his rights.
To support his aspirations, the duke gathered Norman troops and contingents from other territories, prepared a fleet, and organized the transport of horses, weapons, and supplies across the English Channel. The expedition landed in southern England in late September, while Harold was occupied in the north, where he had just defeated the Norwegian army of Harald Hardrada at the Battle of Stamford Bridge.
The decisive confrontation took place on October 14, 1066, near Hastings, where the Norman army faced the Anglo-Saxon troops led by Harold in a battle that lasted for hours and was marked by attacks by Norman infantry, archers, and cavalry, until the death of the English king caused the collapse of his forces' resistance.
William then advanced toward London and gained support from sections of the nobility and the clergy, so he was crowned King of England at Westminster Abbey on Christmas Day 1066.
His victory began a new political era and transformed relations between England and continental Europe.
What Did William the Conqueror Do as King?
Once on the throne, William had to secure Norman dominance over a kingdom where pockets of resistance persisted, especially in northern England, where rebellions and Danish incursions threatened his authority.
Between 1069 and 1070, he led a campaign of repression known as the Harrying of the North, which caused the destruction of crops and settlements, in addition to severe consequences for the local population, while, at the same time, he redistributed numerous properties among his Norman followers, reinforced the castle system, and reorganized power structures to ensure the obedience of the conquered territories.
His reign also promoted administrative and fiscal changes, most notably the Domesday Book, an extensive survey of lands, properties, resources, and economic obligations ordered in 1085 and largely completed in 1086. This record provided the Crown with detailed information to organize tax collection and understand the distribution of the kingdom's wealth.
Likewise, during his reign, the construction of religious buildings and fortifications was promoted, including the White Tower of the Tower of London, a symbol of Norman royal authority.
How Did William the Conqueror Die?
William died on September 9, 1087, in Rouen, Normandy, as a result of wounds sustained during a military campaign against the French King Philip I, according to medieval chronicles that recount his final days, in the expedition that had been linked to territorial disputes between the two rulers and to the rivalry over control of the border regions.
Before dying, William organized the succession of his domains and left the duchy of Normandy to his eldest son, Robert Curthose, while his son William Rufus received the English crown, becoming William II of England.
This division kept the two territories separate during a period of intense dynastic rivalries, although the conquest of 1066 had already permanently transformed the English political structure and consolidated William's place among the most influential monarchs of medieval Europe.
After his death, he was buried in the Abbey of Saint-Étienne in Caen, a religious institution he himself had founded together with Matilda of Flanders.
