They are brothers - both are children of Charles, Prince of Wales and the late Lady Diana (former Princess of Wales).
As of July 2017, Prince William stands 2nd in order of succession to the British throne (behind his father, Prince Charles) while Prince Harry is 5th. (Williams kids are ahead of Harry in the line of succession.)
Harry and William are both Princes because they were born to Diana, Princess of Wales and her husband Charles, Prince of Wales.
Camilla is Harry and William's step mother, they are not related by blood.
Prince William is way hotter. Prince William is taller and more intelligent than Harry. Prince William also has a lot of charisma and a dashing smile.
Prince William's brother is Prince Harry.
Prince William's brother is Prince Henry Charles Albert David better known as Prince Harry.
Prince William has one younger brother - Prince Harry.
Prince Harry
Prince William was born on 21st July, 1982. Prince Henry (Harry) was born on 15th September, 1984. Prince William is therefore the elder by two years.
No
No, William is the eldest.
Yes, Prince William and Prince Harry are brothers.
Prince William has one brother, Prince Harry.
Currently it is Prince Harry until William has a child