Prince Harry is currently third in line of succession . Prince William 's younger brother will be his best man when he marries Kate Middleton . Middleton 's sister Philippa will be her maid of honor . The couple will have four girls and two baby boys . William is second in line to the throne .
Prince William 's younger brother will be his best man when he marries Kate Middleton . Middleton 's sister Philippa will be her maid of honor . The couple will have four girls and two baby boys . William is second in line to the throne .