1698 (aged 86)
Sometime in the mid to late seventeenth century, Furmage went on holiday to Cornwall, in southwest England. There, she was the victim of an abduction by Pixies, a species of pesky beast endemic to the region. As a result Ms. Furmage developed a mortal dread of them for the rest of her life.
Later, and most assuredly fuelled by her fear of the Pixies, she strongly campaigned for the Ministry of Magic to "humanely [destroy]" all of the species. She failed, however, and ended up dying in 1698, still in mortal dread of the mischievous creatures.
The name "Dymphna" is the anglicised form of Damhnait. Saint Dymphna was a seventh-century Irish saint who was martyred by her father. She is the patron saint of the mentally ill.