Question: Which important Roman figure did Matthias Gelzer write a biography for, besides Julius Caesar and Cicero?
Sentence (from "Matthias Gelzer"): Matthias Gelzer (19 December 1886, Liestal – 23 July 1974, Frankfurt am Main) was a Swiss-German classical historian, known for his studies of the Roman Republic in regard to its politics and society.
Relevant evidence: Yes