Prince William and King Charles’s relationship is the “best it has ever been” following the monarch’s cancer diagnosis, a royal commentator has claimed. In a statement released on Monday, Buckingham Palace confirmed the monarch had been diagnosed and is now being treated for “a form of cancer”. This follows a recent hospital trip for the King to undergo a “corrective procedure” for a “benign enlarged prostate”. The King also announced he would be postponing all public-facing duties until he is back to full health. Prince William and Queen Camilla have begun to undertake extra engagements in bo…