I can't find the answer for these anywhere:

2. Who were bishops of the five administrative centers for the church in the last years of the Roman Empire?

4. Who was a powerful aristocratic class that controlled Roman government and society

Please help!
Thanks
-MC

4 answers

http://en.wikipedia.org/wiki/Pentarchy

4. patricians
thank you!!
-MC
You're welcome.
What changes in roman society reflected the empire decline