Answer:
Second triumvirate was consisted out of Lepidus, Marc Anthony and Octavian. Lepidus was thrown away from the Triumvirate after he opposed Octavian, so he died in exile in 13 BC. On the other side, Anthony and Octavian fought after Octavian accused Anthony for his affair with Cleopatra. War emerged, and after Anthony was defeated at battle of Actium Octavian become the sole ruler of Rome.
Step-by-step explanation:
Second Triumvirate was created after the death of Julius Caesar. Because of internal problems between the leaders the Triumvirate collapsed.
Octavian was victorious and he used the situation to proclaim himself the First Roman Emperor.