Buckingham Palace announced today, Monday, that King Charles III's sister, Princess Anne, sustained minor injuries and a concussion following an incident that occurred in Gatcombe Park on Sunday. Princess Anne (73 years old) was hospitalized as a precautionary measure for monitoring and is expected to make a full recovery, according to the palace. The palace stated in a statement: "The King has been kept closely informed and joins the entire royal family in sending their warmest love and best wishes to the Princess for a speedy recovery."