Mother Curie III

 is a character who is added to Fallout 3 in the add-on Broken Steel in the year 2277.

Background
She is the leader of a small break off cult which lives in the Holy Light Monastery in Springvale. A former Child of Atom, she preaches of the glory of the atom and recommends people to irradiate themselves as much as possible.

Interactions with the player character
The player character, that is if the quest Holy Water is started, will have to talk Curie from distributing the "holy water" to others, or the player character can just kill her and her followers. She'll also give the player character some holy water when asked.

Related quest: Holy Water
Mother Curie III was a Megaton local who took Megaton's entire Aqua Pura shipment and began irradiating it and distributing it as Holy Water to fulfill her perceived religious calling to spread irradiation.

Appearances
Mother Curie III appears in Broken Steel add-on for Fallout 3.

Behind the scenes

 * Mother Curie III's name is an obvious reference to the French-Polish scientist Marie Curie-Sklodowska. Marie Curie's death was also caused by radiation poisoning, echoing what Mother Curie's cult is causing.