[[File:Charlotte Gainsbourg and Jane Birkin 2010 b.jpg|upright=0.8|thumb|Birkin with her second daughter [[Charlotte Gainsbourg]] in 2010]]
In 1971, Birkin and Gainsbourg had a daughter, actress and singer [[Charlotte Gainsbourg]]. TheyThe couple separated in 1980, due to Gainsbourg'shis [[alcoholism]] and violence.<ref>{{cite news|url=http://www.smh.com.au/news/film/a-bit-twisted/2007/06/07/1181089228142.html|title=A bit twisted|last=Barlow|first=Helen|date=9 June 2007|newspaper=[[The Sydney Morning Herald]]|access-date=26 September 2011}}</ref><ref>{{Cite web |title=Life, death and Serge: Jane Birkin reveals her insecurities in emotional memoir|url=https://amp.theguardian.com/culture/2019/oct/27/jane-birkin-serge-gainsbourg-emotional-memoir |accessdate=20 June 2023 |website=theguardian.com}}</ref><ref>{{Cite web |date=5 November 2015 |title=The Secret Stories of Jane Birkin and Serge Gainsbourg |url=https://www.anothermag.com/fashion-beauty/7996/the-secret-stories-of-jane-birkin-and-serge-gainsbourg |access-date=20 June 2023 |website=anothermag.com|language=en}}</ref><ref>{{Cite news |last=Butter |first=Susannah |date=19 June 2023 |title=Jane Birkin on Serge Gainsbourg: 'It wasn't easy for the children' |newspaper=[[The Times]] |language=en-GB |url=https://www.thetimes.co.uk/article/jane-birkin-on-serge-gainsbourg-it-wasnt-easy-for-the-children-tthnvhkrj |access-date=20 June 2023 |issn=0140-0460}}</ref> She described him as "a very difficult man to live with",<ref name=":0">{{Cite web |last=Jones |first=Amie |date=13 April 2020|title=Jane Birkin on Serge Gainsbourg and Paris in the 70s |url=https://www.russh.com/jane-birkin/ |access-date=20 June 2023 |website=RUSSH}}</ref> and said during recording sessions he would scream at her and hit her with a ruler if she could not sing a part.<ref>{{Cite web |title=BBC Arts – Unfinished sympathy: Jane Birkin on Serge Gainsbourg |url=https://www.bbc.co.uk/programmes/articles/28mhhzgbRJCLNNqCZSB5HCY/unfinished-sympathy-jane-birkin-on-serge-gainsbourg |access-date=20 June 2023 |website=BBC |language=en-GB}}</ref><ref>{{Cite web |title=Jane Birkin: My family values – Serge Gainsbourg |url=https://amp.theguardian.com/lifeandstyle/2013/jan/18/jane-birkin-my-family-values |access-date=20 June 2023|website=[[The Guardian]]|language=en-GB}}</ref> She took credit for helping him develop his style later in life, saying: "It's all about me, he listened to me a lot."<ref name=":1">{{Cite web |date=24 August 2018 |title=Interview: Jane Birkin on life, love, style, growing older and Serge Gainsbourg |url=https://www.vogue.fr/vogue-hommes/culture/story/the-jane-genie-jane-birkin-opens-up-to-vogue-hommes-about-her-life-love-style-growing-older-and-serge-gainsbourg/653 |access-date=20 June 2023 |website=Vogue France |language=fr-FR}}</ref>
On 4 September 1982, she gave birth to her third daughter, [[Lou Doillon]], from her relationship with director [[Jacques Doillon]].<ref>{{Cite web |date=16 July 2023 |title=Jane, Kate, Charlotte et Lou : le clan des filles Birkin |url=https://www.lefigaro.fr/musique/jane-kate-charlotte-et-lou-le-clan-des-filles-birkin-20230716 |access-date=16 July 2023|website=LEFIGARO |language=fr}}</ref> She said: "Meeting Jacques was a real turning point in my career. In my private life, after I left Serge, Jacques and I lived together for thirteen years, and had Lou."<ref name=":1" /> She said she was surprised and happy to find out that Doillon was not "an old man". They separated in 1993. ''[[The Observer]]'' reported in 2007 that Doillon "could not compete with her grief for Gainsbourg" (who died in 1991), and that she had lived alone since their separation.<ref>{{cite news|url=https://www.theguardian.com/music/2007/oct/28/worldmusic.paris|title=A charmed life|last=Adams|first=Tim|date=28 October 2007|work=The Observer|access-date=26 September 2011}}</ref> Birkin said that Doillon lost interest in casting her in his movies, and she felt "pain for Jacques going off with all these young girls making all these films all the time". Later, Birkin had a relationship with French writer [[Olivier Rolin]].<ref>{{Cite web|url=https://www.telegraph.co.uk/culture/9788193/Birkin-girl-no-pain-no-Jane.html |archive-url=https://ghostarchive.org/archive/20220111/https://www.telegraph.co.uk/culture/9788193/Birkin-girl-no-pain-no-Jane.html |archive-date=11 January 2022 |url-access=subscription |url-status=live|title=Birkin girl: no pain, no Jane|first=Julia Llewellyn|last=Smith|date=14 January 2013|website=Telegraph.co.uk|language=en-GB}}{{cbignore}}</ref>