|Age||appears at least in 60s when reborn|
|Hair||dark, wrapped in braids around her head|
|First Mentioned||A Discovery of Witches|
|First Appeared||A Discovery of Witches, p.225|
Marthe is the housekeeper at Sept-Tours. She has gnarled hands, a husky voice, loves to sing, and enjoys love songs and reading murder mysteries. She also greatly enjoys cooking and making her own blends of tea, despite being a vampire.
Marthe is introduced in A Discovery of Witches as Ysabeau de Clermont's housekeeper. She prefers to speak in Occitan, the old French tongue when around vampire company. Unlike Ysabeau, Marthe immediately warms to Diana and insists on feeding her and helping heal her with home remedies. Diana notes she is the oldest looking vampire she has ever seen. Marthe made Philippe's squire, Alain Le Merle a vampire as Philippe could not do without him in peacetime or war.
It is revealed in The Book of Life that Marthe was already a vampire when Ysabeau de Clermont was made a vampire, and helped Ysabeau to recover from the torture she had suffered at her maker's hands.