Surena defeated a superior Roman force under a leader who was the wealthiest man in Roman history bar which other leader?
Surena Surena or Suren or Sourena (died 53 BC) was a Parthian spahbed ("General" or "Commander") during the 1st century BC. He was a member of the House of Suren and was best known for defeating the Romans in the Battle of Carrhae. Under his command Parthians decisively defeated a numerically superior Roman invasion force under the command of Marcus Licinius Crassus. It is commonly seen as one of the earliest and most important battles between the Roman and Parthian empires and one of the most crushing defeats in Roman history.
Gaius Marius Gaius Marius ( ; 157 BC – January 13, 86 BC) was a Roman general and statesman. He held the office of consul an unprecedented seven times during his career. He was also noted for his important reforms of Roman armies, authorizing recruitment of landless citizens, eliminating the manipular military formations, and reorganizing the structure of the legions into separate cohorts. Marius defeated the invading Germanic tribes (the Teutones, Ambrones, and the Cimbri), for which he was called "the third founder of Rome." His life and career were significant in Rome's transformation from Republic to Empire.