The Duke of Sussex will support charities on both sides of the Atlantic in his 'September public engagements' amid tensions between the Sussexes and the Royal Household.

Buckingham Palace on Monday released a letter of 'guidance' on the monarch's behalf, confirming the couple were not returning to the UK as working royals.

Meghan Markle and Prince Harry, who recently returned to Britain after six years in California, were said to be 'surprised' by a letter issued by the King clarifying how they were…