While everything seems to be copasetic between Prince William and King Charles —the monarch's drama is primarily with his younger brother, Prince Andrew, and his other son, Prince Harry —the king and future king have a little healthy competition going.

As the eldest son of the monarch, 76, and the late Princess Diana, it's no surprise that the Prince of Wales is gearing up to take over the reins as future king.

While there's been a lot of press about King Charles' rift with Prince Harry, it seems there may also be tension in his relationship with Prince William.