"Attalus I (Ancient Greek: Ἄτταλος Α΄), surnamed Soter (Greek: Σωτήρ, "Savior"; 269–197 BC) ruled Pergamon, an Ionian Greek polis (what is now Bergama, Turkey), first as dynast, ...
later as king, from 241 BC to 197 BC. He was the first cousin once removed and the adoptive son of Eumenes I, whom he succeeded, and was the first of the Attalid dynasty to assume the title of king in 238 BC. He was the son of Attalus and his wife Antiochis.
Attalus won an important victory over the Galatians, newly arrived Celtic tribes from Thrace, who had been, for more than a generation, plundering and exacting tribute throughout most of Asia Minor without any serious check. This victory, celebrated by the triumphal monument at Pergamon (famous for its Dying Gaul) and the liberation from the Gallic "terror" which it represented, earned for Attalus the name of "Soter", and the title of "king". A courageous and capable general and loyal ally of Rome, he played a significant role in the first and second Macedonian Wars, waged against Philip V of Macedon. He conducted numerous naval operations, harassing Macedonian interests throughout the Aegean, winning honors, collecting spoils, and gaining for Pergamon possession of the Greek islands of Aegina during the first war, and Andros during the second, twice narrowly escaping capture at the hands of Philip." - (en.wikipedia.org 31.01.2020)
