The younger son of a no-name family from a no-name provincial town, this young man would do more than anyone else (even more than Julius Caesar himself) to establish Octavian at the pinnacle of the Roman power structure, doing everything that needed to be done with supreme competency, and humility.   He vanquished Marc Antony, singlehandedly rebuilt Roman infrastructure, left buildings of indelible beauty, and always had Octavian/Augustus' back, from the day they met in school as teenagers to the day he died.