There are twelve different William Webbs who have left a mark on us in history. They have been everything from a US Senator to a Major League Baseball player.
This question needs to be more specific to narrow it down to which William Webb you are asking about.
William, Duke of Normandy, who become known as William the Conquerer after he became King of England.
Last names (surnames) became more common after the Domesday Book (1087) which William instituted. However, monarchs were and are seldom known by a last name. Had William been given a patronymic name, he might have been known as William Robertson or William Robinson, for his father Robert I. Or the dynastic name William Norman could have been used.
William Rufus
William of Orange (William the Silent)
William Dampier's wife's name was Judith.
William Webb Ellis is English.
Thomas William Webb was born in 1807.
Thomas William Webb died in 1885.
William Walter Webb was born in 1857.
William Webb Follett was born in 1796.
William Webb Follett died in 1845.
William Benning Webb was born in 1825.
William Frederick Webb died in 1899.
William Frederick Webb was born in 1829.
William Benning Webb died in 1896.
William Henry Webb was born on June 19, 1816.
William Henry Webb was born on June 19, 1816.