Early life and education
Florence Leontine Mary Welch was born on 28 August 1986 in Camberwell, London, England, to Nick Russell Welch, an advertising executive and Evelyn Welch (née Samuels), an academic originally from the United States. Through her mother, Welch has both British and American citizenship. Her maternal grandfather was lawyer and coal magnate John S. Samuels III. Florence was raised as a Catholic.
Welch is the niece of satirist Craig Brown via Brown's wife and Welch's aunt, Frances Welch, and granddaughter of Colin Welch, former deputy editor of The Daily Telegraph and former Daily Mail parliamentary sketchwriter. Welch's maternal uncle is actor and filmmaker John Stockwell. She has a younger sister, Grace, who inspired Welch's song of the same name. Welch also has a younger brother named J.J. Welch's parents divorced when she was 13, and her mother eventually married their next-door neighbour, Peter Openshaw. As a result of the marriage, Welch has three step-siblings: Maddie, Sam, and John. Through her father, Welch also has a stepbrother named Nick. When Welch was 14, her maternal grandmother, who had bipolar disorder, died from suicide by jumping from her New York apartment.
During her youth, Welch was encouraged by her Scottish paternal grandmother, Cybil (née Russell), to pursue her performing and singing talents. Welch's deceased grandmothers inspired numerous songs on Florence and the Machine's debut album Lungs (2009). In her youth, Welch also sang at family weddings and funerals. Aged ten, she performed the song of Yum-Yum ("The sun whose rays are all ablaze") from The Mikado by Gilbert and Sullivan at Colin Welch's memorial service.
In Florence and the Machine's 2018 single "Hunger", she opened up for the first time about an eating disorder she had as a teenager. She has also spoken of being a highly imaginative and fearful child.
Welch was educated at Thomas's London Day School, Battersea and went on to study at Alleyn's School, South East London, where she did well academically. However, Welch often got in trouble in school for impromptu singing and for singing too loudly in the school's choir. While in middle school, Welch and two of her friends started a "witch's coven", creating spellbooks and attempting to cast spells on classmates. Despite an early love of reading and literature, she was diagnosed with dyslexia, owing to problems with spelling, alongside dyspraxia, a developmental coordination disorder that does not affect her reading ability, but caused issues with organisation. Music and books gave her a reprieve from what she felt made her different from others. After leaving secondary school and spending some time working at a pub, Welch studied illustration at Camberwell College of Arts, before dropping out to focus on her music.