The Prince of Wales has suggested he will not speak out on issues when he becomes king as he recognises being heir to the throne and head of state are two different roles.
Ms Markle asked The Prince of Wales to give her away after her father is no longer able to attend the wedding.
'The only trouble is I don't know how I am going to keep up with them,' says the heir to the throne
Prince takes prominent role during two-day Commonwealth summit
Prince Charles went out on a glass-bottom boat to view coral and sea life in Australia
Prince of Wales and Duchess of Cornwall play table tennis as they tour Commonwealth Games athletes' village
George Galloway hopes Prince Charles never becomes the head of state
The group of officials is expected to reveal its findings to the Commonwealth Heads of Government Meeting in April
Speculation has been growing as to whether the US President will be invited to the wedding of Prince Harry and Meghan Markle
Prince Harry and his American actress girlfriend Meghan Markle were revealed to be engaged
The letter was written in 1986 following his trip to Saudi Arabia with Princess Diana
The Prince of Wales and the Duchess of Cornwall paid their respects to those who died for India
The Prince revealed more clearly how Charles was there for him and his brother
Diana: In Her Own Words aired controversial tapes the Princess made with her former vocal coach
The recordings, which were made with her former vocal coach, will be aired after her sons spoke out in documentaries about the Princess' life
Dickie Arbiter says the documentary is personal and honest and it was the right time to make it
The reigning monarch of the Netherlands has revealed he serves as a KLM co-pilot as often as twice a month
Galloway says the principle of hereditary monarchy is ridiculous - you wouldn't expect it in any other walk of life
Today marks the anniversary of Princess Diana's death in a car crash - but what happened to her lovers, friends and confidantes?
Royal Photographer Arthur Edwards makes the case for the defence