"Giovanni II Bentivoglio (12 February 1443 – 15 February 1508) was an Italian nobleman who ruled as tyrant of Bologna from 1463 until 1506. He had no formal position, but held power as the city´s "first citizen." The Bentivoglio family ruled over Bologna from 1443, and repeatedly attempted to consolidate their hold of the Signoria of the city." - (en.wikipedia.org 31.01.2020)