The couple are on a whistle-stop tour of Sussex, arriving first at Edes House, in Chichester, on a busy day of engagements.
The Duchess is wearing a camel Armani coat, a dark green Hugo Boss skirt and shirt from And Other Stories paired with nude suede stilettos.
The Duke and the Duchess, the US-born former actress, will view the rare Sussex copy of the American Declaration of Independence.
Crowds gathered early in Chichester ahead of the couple’s arrival, with Ros Gentle among those waiting to catch a glimpse. She said: I think they are a great advert for the Royal family.
In the afternoon, the couple will travel to East Sussex. The Duke, who was given the title the Duke of Sussex by the Queen on the morning of his wedding, will tour Brighton’s historic Royal Pavilion with the Duchess.
The couple end the tour in Peacehaven, meeting youngsters at the JOFF Youth Centre and hearing about their work on mental health and wellbeing.
Before Harry, the title the Duke of Sussex was last used 175 years ago by Prince Augustus Frederick an eccentric son of King George III who had his two marriages deemed illegal. Meghan is the first Duchess of Sussex.