This was built by a very wealthy politician, a relative of Cicerone.  The temple  celebrates the  Emperor Augusto and his successors.  Our question is: why would a relative who was Augustus’ enemy , who was killed by Mark Antony, erect a temple ?  A  political figure could never have had a career if he were suspected by the Emperor and, turned away from his famous but cumbersome relative?
    The building is rather small and had funnily enough cult ministers, you could only get to this place via a stairwell, interrupted by a platform.