Corey and Meghan dated for two years before they called it quits just before she met Prince Harry.
The pair will then attend a lunch at Chester's Town Hall.
Prince Harry and Meghan Markle were given new royal titles after the Royal Wedding on Saturday, May 19. Their first stop on June 14 will be officially opening the Mersey Gateway Bridge, at Catalyst Science Discovery Centre.
"I am delighted to announce that The Hague is taking up the challenge of hosting the 5th #InvictusGames", Harry announced in a tweet from the Kensington Palace account.More news: 'Beyond disappointed': Serena withdraws from French Open
To protect the couple's privacy, details of a honeymoon would not be released publicly, although destinations including Canada and Africa have been touted as strong possibilities.
It's an exciting time to be alive, but an even more exciting time to be a royal fan.
The Hague will host the event in which wounded military veterans compete in a Paralympic-style event.
Rumours that Prince Harry and his bride Meghan Markle, now the Duke and Duchess of Sussex, have leased WestfieldLarge, a property on the Great Tew estate. Case in point: Meghan's former Suits co-stars Gabriel Macht and Sarah Rafferty "raved" to Entertainment Tonight about all their favorite parts of the event.
In a statement released by the Invictus Games Foundation, Harry said that the Hague "is taking up the challenge of hosting the fifth Invictus Games in 2020".