In 1774 wordt Georgiana Spencer (Knightley) – zeventien jaar jong; mooi; goed in vreemde talen, paardrijden en dansen – door haar moeder uitgehuwelijkt aan één van de machtigste mannen van Engeland (Fiennes). Hij wil dat ze voor hem een opvolger baart en is verder meer geïnteresseerd in zijn honden. Georgiana stort zich op het sociale leven van de Engelse upper-class en staat dagelijks in de roddelrubrieken van de krant.
Nee, helaas is The Duchess nog niet beschikbaar op Netflix in Nederland.
| Production | David M. Thompson | Executive Producer |
| Production | Gabrielle Tana | Producer |
| Camera | Pados Gyula | Director of Photography |
| Writing | Jeffrey Hatcher | Screenplay |
| Production | Michael Kuhn | Producer |
| Editing | Masahiro Hirakubo | Editor |
| Production | Carolyn Marks Blackwood | Executive Producer |
| Sound | Rachel Portman | Original Music Composer |
| Writing | Anders Thomas Jensen | Screenplay |
| Directing | Saul Dibb | Director |
| Camera | Rodrigo Gutierrez | Additional Camera |
| Writing | Saul Dibb | Screenplay |
| Visual Effects | Adam Gascoyne | Visual Effects Supervisor |
| Lighting | Vince Madden | Rigging Gaffer |
| Crew | Jill McCullough | Dialect Coach |
| Costume & Make-Up | Rachael Speke | Makeup Artist |
| Costume & Make-Up | Stephanie Hovette | Wigmaker |
| Crew | Francesca Jaynes | Choreographer |
| Editing | Jonathan Dixon | Digital Intermediate |
| Sound | Yann McCullough | Music Editor |
| Writing | Amanda Foreman | Novel |
| Sound | Andrea King | Foley |
| Crew | Simon Allmark | Visual Effects Editor |
| Editing | Josh Sutcliffe | Digital Intermediate |
| Editing | Neil Williams | First Assistant Editor |
| Costume & Make-Up | Corinne Bossu | Makeup Artist |
| Lighting | John Colley | Gaffer |
| Sound | Catherine Hodgson | Supervising Sound Editor |
| Costume & Make-Up | Fran Needham | Hairstylist |
| Crew | Muffin Green | Property Master |
| Costume & Make-Up | Tapio Salmi | Makeup Artist |
| Art | Michael Carlin | Production Design |
| Art | Rebecca Alleway | Set Decoration |
| Sound | Roberto Cappannelli | Sound Re-Recording Mixer |
| Sound | Paul Hamblin | Sound Re-Recording Mixer |
| Camera | Gerry Vasbenter | Camera Operator |
| Editing | Marcus Alexander | Digital Intermediate |
| Visual Effects | Fay McConkey | Visual Effects Producer |
| Visual Effects | Charlie Noble | Visual Effects Supervisor |
| Camera | Peter Mountain | Still Photographer |
| Art | Karen Wakefield | Art Direction |
| Art | James Collins | Assistant Art Director |
| Crew | Emma Davie | Unit Publicist |
| Production | Ben Gladstone | Location Manager |
| Costume & Make-Up | Michael O'Connor | Costume Design |
| Costume & Make-Up | Louise Fisher | Makeup Artist |
| Crew | Ed Cross | Visual Effects Editor |
| Visual Effects | Becky Roberts | Visual Effects Producer |
| Editing | Élodie Ichter | Digital Intermediate |
| Directing | Sam Donovan | Script Supervisor |
| Sound | Andie Derrick | Foley |
| Production | Christine Langan | Executive Producer |
| Production | Mark Woolley | Associate Producer |
| Production | Malcolm Ritchie | Associate Producer |
| Production | Andrew Warren | Line Producer |
| Production | Colleen Woodcock | Co-Producer |
| Production | Alexandra Arlango | Co-Producer |
| Production | François Ivernel | Executive Producer |
| Production | Amanda Foreman | Executive Producer |
| Production | Cameron McCracken | Executive Producer |
| Production | Jill Tandy | Associate Producer |
| Production | Andrew Semans | Associate Producer |
| Costume & Make-Up | Daniel Phillips | Makeup Designer |
| Costume & Make-Up | Jan Archibald | Hair Designer |
| Sound | Jeff Richardson | Dialogue Editor |
| Sound | Howard Halsall | Dialogue Editor |
