Complex sentence: After a peace agreement was brokered and a large bribe payment given to the invaders, the Senate conferred upon him the empty title of "Germanicus Maximus", and also acquired the surname "Alemannicus" at this time.
Split into simpler sentences: After a peace agreement was brokered and a large bribe payment given to the invaders, the Senate conferred upon him the empty title of "Germanicus Maximus". He also acquired the surname "Alemannicus" at this time.