Who ruled Rome in the Second Triumvirate?

The Second Triumvirate, formally known as the tresviri rei publicae constituendae ("triumvirate for organizing the state"), was a board of three officials granted absolute, dictatorial authority in 43 BCE. The members of this alliance were:1

• Octavian (the future Emperor Augustus)
• Mark Antony
• Marcus Aemilius Lepidus

Unlike the so-called "First Triumvirate"—which was an informal, extralegal compact between Julius Caesar, Pompey, and Crassus—the Second Triumvirate was a legally sanctioned commission. The three men divided the Roman world among themselves, though the alliance eventually collapsed as they turned on one another. Lepidus was stripped of his office by Octavian in 36 BCE, and following the defeat of Mark Antony and Cleopatra at the Battle of Actium in 31 BCE, Octavian emerged as the sole ruler of Rome.213