Meghan Markle meets Morocco's king in final tour engagement with Prince Harry

Meghan Markle wowed in a custom designer gown as she met Morocco’s king in her final tour engagement with Prince Harry .

And plans for the Duke and Duchess of Sussex to make a return trip to Morocco appear to be in the offing after Harry said they would come back and "keep it very quiet".

The couple ended their three-day tour by spending around an hour with Morocco’s King Mohammed VI at his private residence surrounded by his immediate family.

The duchess made her third outfit change of the day into a stunning £3,222 Carolina Herrera dress.

Meghan, who is around seven months pregnant, wore the flowing blue gown from Herrera’s AW19 collection at the monarch’s residence in Rabat on Monday evening.

With a crew neck, flared short sleeves and a fitted waistline, the dress is by a designer favoured by Queen Letizia of Spain.

The King granted an audience to Harry and Meghan in his private home, a 1950s Arabic-style country mansion set in a lush garden of ferns and bamboo trees in the capital Rabat.

But it was more like a get together with friends with the 15-year-old Crown Prince Moulay Hassan greeting the couple outside the door after they arrived in the King’s vintage Mercedes 600 SEL, loaned to the couple during their stay.

The head of state was all smiles in the doorway and Harry and Meghan both complimented his home which featured an ornate internal courtyard behind the monarch, richly decorated with Arabic designs.

There was one formality with Harry presenting a private message from his grandmother the Queen in a large envelope.

In a side room the royal party sat down with the Crown Prince joining Meghan on a sofa, Harry and the King nearby on another, and on a third sofa the monarch’s sisters Princesses Meryem and Hasna and his brother Prince Moulay Rachid.

Missing was the King’s wife Princess Lalla Salma who has been the subject of much speculation after disappearing from public life more than a year ago – with rumours circulating she may be living abroad.

Harry described how he had an invitation from an unknown individual to stay on after their tour ended: "He was very keen on getting us down there two days after this trip, unfortunately we have commitments to get back to."

He also said to the King he would not be able to take up "your fantastic invitation."

But he added: "Next time we will schedule it properly. We will keep it very quiet from everybody out there."

Earlier in the day, the pregnant Duchess, 37, and the Duke of Sussex learned how the country’s love of horses is being used to help children with disabilities at an equestrian club in Rabat.

The royal couple then moved on to watch underprivileged children make a dish from the Grenfell cookbook championed by Meghan.

They were pictured full of smiles as they tasted some of the delicious recipes.

Meghan and Harry then took a tour around the beautiful Andalusian Gardens in Morocco’s capital.

The couple earlier learned about the country’s developing programme of equine therapy for children with special needs, funded by King Mohammed.

Arriving at the Royal Equestrian Club Dar Essalam, the country’s main equestrian venue, they were introduced to Louis Broski from Holland, the founder of the Centre Social Kariat in Sale, near Rabat.

The organisation works with mentally and physically disabled young people.