Daughter of the Irish educational writer and engineer, Richard Lovell Edgeworth (1744–1817; DNB) and younger sister of the novelist, Maria Edgeworth (1768–1849; DNB). In April 1794 she married Thomas Beddoes, an acquaintance of her father’s. The marriage produced two sons (including the poet, Thomas Lovell Beddoes (1803–1849; DNB)) and two daughters, but proved unhappy.