When I work on a new historical author, I like to look for inspiration in fiction, art or cultural artefacts. To get in the mood for Christine de Pizan I watched Dreyer's 1928 The Passion of Joan of Arc and spent ages poring through medieval recipes in Le Menagier de Paris.
When it comes to Olympe, there are several fictionalised biographies, but they are, to be honest, all a bit dreary. Catel and Bocquet's graphic novel, Olympe de Gouges, on the other hand, is truly inspirational. The history is detailed and as accurate as can be expected in a fiction, the character of Olympe is likeable and really fits the tone of her writings. The black ink drawings which become darker and less detailed as the story gets bleaker, really bring Paris, especially, to life. Also, it's a long book (488 pages) so you can really get stuck into it!