Kate Middleton, who's gradually returning to public life after completing her course of chemotherapy, has left one important role amid ongoing crisis within the family.

The Princess of Wales has said goodbye to one of her key duty to focus on other important matters.

The future Queen has left 'peacemaker role' of trying to heal rift between two feuding brothers, Prince William and Prince Harry.

A royal insider claims "Princess Catherine has previously tried to improve the relationship between William and Harry, but this is unlikely to continue.

"Kate has no interest in wasting time as she focuses on other important things."

The insider claimed: "She pays attention to her husband, her children and her health to remain cancer free for very gradual return to work."

Royal commentator Jennie Bond told OK!: "I think her illness has made her marriage to William stronger than ever, and that was evident from the video. You can try playing peacemaker for just so long, and it looks as though she did make some attempt to bridge the gap."

"But, in the end, your loyalty and your heart belong to your husband, and I don't think Catherine will exert any pressure on William to hold out an olive branch to Harry unless he decides that's what he wants. And that looks wholly unlikely for the foreseeable future," claimed Bond.