Princess Charlotte “will be the spare” like her uncle Prince Harry but she will have a “high-profile role,” a royal commentator has claimed. Prince William and Kate’s children, Prince George and Princess Charlotte, are the heir and ‘spare’ to the throne, respectively. The nickname ‘spare’ used to describe a backup to the heir was used by Prince Harry for the title of his memoir. Marlene Koenig exclusively told GB News: “Charlotte will be the Spare until George marries and has children. “The Royal family will be smaller than it is now so one assumes that Charlotte will be a senior royal support…