Then, as someone mentioned earlier, there were the Huguenots,and the Dutch in the 17th century, and various other waves of immigration throughout history, which have all added their own influences to "English" culture. Right up to the present day.
   
    It has been estimated that more than 1/4 of the poulation of England and as much as 1/6 of the population of the USA are descended from French Huguenots.