'Downton Abbey' writer Julian Fellowes has adapted his novel 'Belgravia' into a new ITV show which will star former 'Iron Fist' actress Alice Eve.

Julian Fellowes

Julian Fellowes

The series is set in 19th century London and will run for six episodes and as well as Alice the cast will include major names such as Tamsin Greig, Philip Glenister and Dame Harriet Walter.

The drama will begin on the eve of the Battle of Waterloo in 1815 and will focus on the Trenchards who accept an invitation to attend a ball hosted by the Duchess of Richmond for the Duke of Wellington and that party will set in motion a series of events with dramatic and long-term consequences for London's high society.

Tasmin and James will star as Anne and James Trenchard - a humble couple who are climbing the social ladder - and Alice will portray their daughter-in-law Susan Trenchard.

Dame Harriet - who is best known for her roles in 'Atonement' and 'The Crown' - will be taking on the part of Caroline, Countess of Brockenhurst.

The creators of the show are excited about unveiling the "intriguing" plot to viewers and says wonderful characters will be in store.

ITV drama boss Polly Hill said: "It's a tale of scandal and intrigue set in 1840s London with some wonderful characters spanning two generations at its heart."

'Belgravia' will be co-produced by Carnival Films and filming will commence in the spring.