Celebrities appearing on Who Do You Think You Are? frequently find themselves floored by facts from the lives of their long-gone relatives.
And Amy Dowden received a particularly hard blow when she was reminded of her own battle with breast cancer, after learning her great-grandmother died of the same disease a century before.
The Strictly Come Dancing professional, 35, broke down in tears on the BBC programme when she was told her relative, Louisa, died aged 39 in 1921.
While she is now cancer-free, Ms Dowden endured chemotherapy, a double mastectomy and a number of severe side-effects including sepsis following her own diagnosis
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