Karl Weierstrass
31 October 1815 — 19 February 1897
Karl Theodor Wilhelm Weierstrass was a German mathematician often cited as the "father of modern analysis". Despite leaving university without a degree, he studied mathematics and trained as a school teacher, eventually teaching mathematics, physics, botany and gymnastics. He later received an honorary doctorate and became professor of mathematics in Berlin.
A memorial on Digital Cemetery, an endless map you can explore. This grave stands at coordinates 4, 14.