Prince William Arthur Philip Louis-Windsor Castle
Grandmother: Elizabeth II
Grandfather: Prince Philip
Father: Prince Charles
Mother: Princess Diana
Brother: Prince Harry
Date of birth: 1982.6.2 1
Prince Harry's grandmother: Elizabeth II
Grandfather: Prince Philip
Father: Prince Charles
Mother: Princess Diana
Date of birth:1September 1984 15.
Princess Diana (1961-1997)1997 died in a car accident in Paris, France, and Princess Diana held a funeral in September1997.
So at that time, Prince William 16 years old and Prince Harry 14 years old.