He was born in Falaise, Normandy, around 1028.
Because he CONQUERED England. "Conqueror" is just a nick-name that stuck :) Like Edward I - Longshanks XD
William Sheller's birth name is William Hand.
William Robyns's birth name is William Robins.
William Roerick's birth name is William Roehrich.
William Spiritdancer's birth name is William Drake.
William Terriss's birth name is William Lewin.
William Brisbane's birth name is William Brisben.
William Markus's birth name is William Marcus.
William Marr's birth name is William Dobie.
William Dalphin's birth name is William Dalphin.
William DuFresne's birth name is William Petty.
William Castle's birth name is Schloss, William.