The limited series is scheduled to air on ITV in Britain and EPIX in the United States. No premiere dates have been announced yet.
"Belgravia is a story of secrets and scandals amongst the upper echelon of London society in the 19th century," a synopsis said.
"When the Trenchards accept an invitation to the now legendary ball hosted by the Duchess of Richmond on the fateful eve of the Battle of Waterloo, it sets in motion a series of events that will have consequences for decades to come as secrets unravel behind the porticoed doors of London's grandest neighborhood."
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