Prince Charles was named as the next head of the Commonwealth to succeed his mother, Queen Elizabeth II, earlier this year.
The Queen has filled the role since 1952.
Before the announcement was made, many had claimed that Charles should be "skipped over" as Head of the Commonwealth in favour of Prince William.
However, Her Majesty chose to grant Charles the role, as is tradition.
Prince Charles and Camilla will embark on a nine-day visit to Gambia, Ghana and Nigeria to celebrate the “UK’s historic ties with the Commonwealth nations” later this month.
The historic trip will take place over nine days from October 31.
They will return to London just in time for Prince Charles’ 70th birthday on November 14.