Hypatia (ca. AD 350–370–March 415) was a "Greek Neoplatonist philosopher
in Roman Egypt who was the first notable woman in mathematics. As head of
the Platonist school at Alexandria, she also taught philosophy and
astronomy." She was "murdered by a Christian mob which accused her
of causing religious turmoil".
I read about Hypatia in "The
Swerve - How the world became modern" a book by Stephen Greenblatt.
In the book, he says that the Christian patriarch Cyril wanted to expel
all the Jews from Alexandria and that Hypatia among others refused to go
along with Cyril's plan.