Guto composed an elegy for Gweurful daughter of Madog..., and he almost certainly composed other poems for her that have not survived. Other poets also composed poems for Gweurful:
- a poem by Llawdden to thank Gweurful for a peacock and a peahen and to request a peacock from both her and her husband, Gruffudd ab Ieuan Fychan, on behalf of Dafydd Llwyd of Newtown
- an elegy by Lewys Glyn Cothi
Gweurful had two sisters, Catrin and Annes, and her mother was Marged daughter of Siencyn Deca.... Hywel, her son from her first marriage, was the father of Elen, wife of Dafydd ap Meurig Fychan of Nannau.
Guto’s elegy for Gweurful’s son, Dafydd Llwyd, clearly shows that she had died before both Dafydd and his wife, Catrin, died of the bubonic plague around the beginning of November 1465. However, the exact date of her death is unknown. Since she married twice and bore six children, it is likely that she was born before c.1430. 1