Born in Prussia, I married Ottilie Mendelssohn, cousin of the wife of the great mathematician Dirichlet...plus my daughter Marie married the mathematician Hermann Schwarz.
Trained as an applied mathematician, I was responsible for training German army officers in ballistics.
Later, I taught in a German secondary school for ten years, where I inspired the mathematical career of my student Leopold Kronecker.
Eventually, through the help of Dirichlet, I taught mathematics at the University of Breslau and the University of Berlin...where I worked closely with Weierstrass.
As to my mathematical contributions, I codified some of the relations between different hypergeometric series in function theory and created my eponymic surface by taking the quotient of a twodimensional abelian variety by the cyclic group {1, −1}.. starting this research program while still teaching secondarylevel mathematics!
I also proved Fermat's last theorem for a considerable class of prime exponents, creating the concept of "ideal" numbers which eventually led to ring theory.
Answer:
Ernst Eduard Kummer (1810  1893)
