Born in Dessau, Müller made a living in the last two decades of the nineteenth century by selling lemons (in German Zitronen) on the Grasbrook during the day and at nights in the pubs of the Neustadt. Her famous call while she sold the lemons was Zitroon! Zitroon!. Due to drunkenness and mental illness, in August 1894 she was sent to the Friedrichsberg asylum.
