Prince William's brother is Prince Henry Charles Albert David better known as Prince Harry.
Prince Harry's father is Prince Charles, the Prince of Wales.
Prince Harry
Prince William's brother is Prince Harry.
Prince Harry is not married
Yes, Prince Harry is the son of Prince Charles and Lady Diana.
Prince Henry of Wales
Prince Harry is currently fifth in line to the throne so it is very unlikely that he will become King, but not impossible.
Prince Charles, the Prince of Wales, is the biological father of Prince Harry.
Prince Harry is not a king. His title is Prince Henry of Wales.
No, Prince Philip is not Harry's Dad, he is his Grandad.
Prince William has one younger brother - Prince Harry.