She was Bridgerton's perennially single character.
But fans of the Netflix hit will be delighted to see that Penelope Featherington, played by Nicola Coughlan, has had a baby with the love of her life, Colin Bridgerton.
So popular was the characters' on-again-off-again relationship that viewers lovingly dubbed the Polin - a combination of Penelope and Colin.
A picture dropped on Valentine's Day to tease the upcoming fourth season of the period romance revealed a ginger-haired baby cradled by Ms Coughlan, 38.
Reprising her role, Ms Coughlan, who recently confirmed her romance with the 25-year-old actor Jake Dunn, appeared in the usual regency dress with her red-haired wig in curls.
Australian actress, Yerin Ha, plays the role of the love interest and is set to be the 27-year-old's big break after appearing in minor television shows such as Halo.
Returning to the show is fan favourite, Johnathan Bailey, in his role as Anthony Bridgerton as filming began this month for the Netflix sensation.
Season 4 will dive much more into the Regency era’s upstairs-downstairs class politics than previous seasons, due to Sophie being of a lower class than Benedict and the Bridgerton family, as well as the fairytale and forbidden love tropes.
Netflix confirmed: 'Despite his elder and younger brothers both being happily married, Benedict is loath to settle down.
'That is, until an enthralling woman captures Benedict's attention at Violet Bridgerton's (Ruth Gemmell) masquerade ball.
'While Benedict knows his love interest as only the Lady in Silver, she's actually Sophie, a resourceful maid with her own secrets and dreams.'
Ahead of taking on this season's lead role Luke said of his character: 'Benedict has always been a little lost — or free depending on the way you want to look at it. But now he's trying to find something a bit more solid in himself.'
Creator Shonda Rhymes added: 'He's a charming man who's trying to find his way. He's very delightful and funny. I'm excited for everybody to watch him.'
Although a release date has not been announced yet, it is confirmed the season will be made of 8 parts and will take around 8 months to wrap up filming.
Speaking to THR, showrunner Jess Brownell said: 'We are working to try and put the seasons out more quickly, but they do take eight months to film and then they have to be edited, and then they have to be dubbed into every language.
'The writing takes a very long time as well, so we're kind of on a two-year pace, we're trying to speed up, but somewhere in that range.'
