There wasn’t a single famous Roman called “Maximus” for the whole period 300 to 100 BC; Maximus was a Roman family name, not one specific ruler or leader. If you mean the office of Pontifex Maximus , that was the chief priesthood in Rome, and records show different holders across the Republic, not one person for that whole span.

Likely meanings

  • Quintus Fabius Maximus Rullianus was a prominent Roman statesman and general in the late 4th and early 3rd centuries BC, with multiple consulships and military commands.
  • Pontifex Maximus was the top religious office; by the Republic it was elected and held for life, but the exact holder changed over time.

About the date range

From 300 to 100 BC , Rome had many important figures, but no single historical person universally known as “the Roman Maximus”. If you meant a specific man named Maximus, the most likely candidate is Quintus Fabius Maximus Rullianus.

TL;DR: “Maximus” is not one unique Roman from 300–100 BC; it usually refers either to a surname or to the title Pontifex Maximus.