If they were both on the same plane and it crashed or was sabotaged, then the two primariy heirs to the throne might be both killed. Therefore they must travel seperately so that in the case of suh a tragic event only one of them would die.
No Prince Charles and Prince William can not travel on the same plain. This is in case one of their plains has a mishap, the Royal family would still have one of them as heir. The only time they flew...
As members of the British Royal Family, they do not really have surnames. They can however be known as Mountbatten- Windsor (a combination of the Queen and Duke of Edinburgh's family names) or can...
Since Charles is the Queen's eldest son, he should be the next in line to be King. However because Elizabeth II is now 83, even though she is healthy, the weight of being a queen will soon bring on...