'He was of just stature, ordinary corpulence, fierce countenance; he was majestic whether sitting or standing;' (William of Malmesbury describing William the COnqueror in his Historia Anglorum)
William was born in Normandy in 1028 to his father, Robert, Duke of Normandy, and his mother Herleva from Falaise. William's parents never married and this therfore made him an illegitimate son, although he was Robert's only child and only heir to the throne. When William ascended the throne of Normandy, he married Matilda of Flanders which enabled Normandy to stave off the threats from the French King, Henry, and Geoffrey of Anjou. William's nickname before his conquest of England was "William the Bastard" because of the illegitimacy of his birth. This nickname soon changed after his many great accomplishments which recognize him still today.
William's first accomplishment during his early years as King of Normandy was his seize of the region of Maine in France. After this smaller task, William chose to take on a much greater one. Edward the Confessor, the last Angle Saxon King died and in 1066, William invaded England. He led his Norman troops into England to victory against the Angle Saxon forces of Harold Godwinson in the Battle of Hastings, also known as the Norman Conquest. After being crowned Kig of England on Christmas Day,William now had control of England, Maine, and Normandy. William made great success towards taxation and centralization of the nation's resources by creating the "Doomsday Book". This book provided the Monarchy with the information about the value of each person in every area of his ruling. He then divided England into counties and within each county were smaller "shires" in which he appointed a "royal sheriff" to each shire. William also built many castles demonstrating his determination to dominate the population and to illustrate his power. He also required all knights and vassals to pledge fealty directly to him, rather than their liege Lord. This made William the Conqueror superior.
In September of 1087, William the Conqueror was killed during one of his many campaigns against the French Kings. William knew how to govern a nation and protect it from foreign aggressions. For more than two centuries England had been frequently harassed by the decents of piratical hordes. He put and end to these. William the Conqueror would be placed at eight out of ten (8/10) when rated on his power and accomplishments, due to his great success of his capture of England, and being able to sustain and improve the country while being King of Normandy. He self-gained power and proved himself as a Conqueror.