BTW, had ol' Bill not kicked Harold's ass at Hastings (arse for you Anglophiles), the present dayQuote from harrytrader:
William I the Conqueror, King of England
Acceded: 25 DEC 1066, Westminster Abbey, London, England
Reigned 1066-1087. Duke of Normandy 1035-1087. Invaded England defeated and killed his rival Harold at the Battle of Hastings and became King.
English speaking world would most likely be speaking French.