Question: Gnaeus Pompeius of Pompeia became a member of the First Triumvirate along with this general and politician who played a key role in the transformation of the Roman Republic into the Roman Empire and was the second wealthiest person next to which person?
Sentence (from "Battle of Munda"): With the military victory at Munda, and the deaths of Titus Labienus and Gnaeus Pompeius (eldest son of Pompey), Caesar was politically able to return in triumph to Rome, and then govern as the elected "Roman dictator".
Relevant evidence: No