Who was forced into exile due to his powerful preaching against immorality at Constantinople?

John Chrysostom, an important Church Father and Archbishop of Constantinople, was known for his eloquent and powerful preaching, particularly against the rampant immorality and corruption of his time. His sermons often included critiques of the wealthy elite and the moral decline he observed in society, which ultimately led to significant unrest among various political and ecclesiastical factions.

Due to the influence of those he condemned and the backlash from powerful figures who felt threatened by his bold rhetoric, Chrysostom faced opposition that culminated in his exile. His unwavering commitment to preaching truth, regardless of the consequences, not only exemplifies his character but also highlights the challenges faced by early Church leaders who sought to uphold moral standards.

Other figures mentioned in the options had different roles in history. Eusebius of Caesarea was a historian and early church scholar, primarily known for his writings on church history. Constantine the Great was the Roman Emperor who played a major role in the legalization of Christianity and the establishment of the church as a pivotal entity in the Roman Empire. Licinius was also an Emperor but primarily known for his opposition to Constantine. These individuals did not face exile specifically for preaching against immorality in Constantinople as John Chrysostom did.