When the second trimvirate failed what became the sole ruler of the roman empire?

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.

After the failure of the second triumvirate, and a civil war, Octavian became the sole ruler.