King Charles is allegedly furious over Kate Middleton and Prince William moving houses again—inside his reaction.

Back in their university days, royal biographer Katie Nicholl revealed in her book The Making of a Royal Romance the “bizarre” (in the words of The Daily Mail) nickname that William’s friends gave Kate and her birth family of five: “the OM Middletons.”

Rumor has it that Prince William and Kate Middleton are on the move. According to the British tabloids, the Wales family may relocate from Adelaide Cottage, their four-bedroom home in Windsor Great Park to the nearby Fort Belvedere, which is located at the southern end of the vast 4,800-acre Crown Estate.