| Aleksandr Friedmann: A biography with reference to contemporaries, and a list of references. | |
| Georg Riemann: Although he died before the development of general relativity, his work in non-Euclidean geometries is very important to studying a curved spacetime. | |
| Georgio Ricci-Curbastro: The mathematician who developed much of tensor calculus before Einstein found a use for it. | |
| Hendrik Lorentz: Brief biography. | |
| Hermann Minkowski: A brief biography with quotations and a bibliography. | |
| Hermann Weyl: One of the first people to combine general relativity with the laws of electromagnetism | |
| Karl Schwarzschild: The man who solved Einstein's equations and predicted the existence of black holes | |
| Karl Schwarzschild: A brief biography with reference to contemporary mathematicians and theories. | |
| Luigi Bianchi: A mathematician who developed many theorems regarding Riemannian geometry | |
| Marcel Grossmann: A brief biography on Marcel Grossmann, a classmate of Einstein who was the first to find a connection between tensor calculus and the theory of relativity. | |
| Willem DeSitter: Mathematician who studied solution to general relativity and developed DeSitter space |
|