Eumenes II of Pergamon

Eumenes II fought alongside the Romans at the Battle of Magnesia, where the Seleucid king Antiochus III was defeated. This victory secured Roman dominance in Asia Minor and expanded Pergamon's territory, making it a key Roman ally.

Eumenes II benefited from the Treaty of Apamea, which ended the war with Antiochus III. Pergamon received large territories in Asia Minor, including Phrygia and Lydia, greatly increasing its wealth and influence.

Eumenes II commissioned the Great Altar of Pergamon, a monumental structure adorned with a frieze depicting the Gigantomachy. This masterpiece of Hellenistic art symbolized the Attalid dynasty's power and cultural patronage.