A former royal butler has slammed Andrew Mountbatten-Windsor for behaving like he was above everyone else, giving his brutal verdict on the disgraced former Duke of York based on their interactions during his time as an employee in the royal household, Wonderwall.com can report. Grant Harrold worked for King Charles III and Queen Camilla from 2004 to 2011 and during that time also served Prince William, Kate Middleton and Prince Harry.