Prince Harry said his future wife is "hugely excited" to get involved in the commonwealth organization.
The sequence in which members of the Royal Family would come to the throne if the reigning monarch died or abdicated.
"Harry & Meghan: A Royal Romance" is slated to premiere this spring.
Prince Harry's fiancée disappears from social media.
Along with Prince Harry, she greeted a crowd gathered outside St Mary Magdalene Church in Sandringham.
"There is a profound sense of commitment and seriousness both about their faith and about their lives together."
Royal watchers believe the Duchess of Cambridge wore a maternity dress from Jenny Packham's Fall 2017 line to the Royal Variety Performance.
The Duke of Cambridge said new ideas were needed on how to manage water resources and the grazing of animals.
The heir to the British throne also honored first responders to the attack on an Ariana Grande concert in May.
The couple receive some public money for official business.
The Duchess of Cambridge is once again suffering from severe morning sickness.