In 156 B.C. Prousias attacked Pergamon and devastated the suburbs of the city, but after the Romans intervened, the war ended in favour of Attalos in 154 B.C.; see R.M.Errington, "A History of the Hellenistic World: 323 - 30 BC", pp. 265-6 ( Google Books ). The translation is taken from A.Chaniotis, "War in the Hellenistic World", page 147 ( Google Books ).
King Attalos, son of king Attalos, and those who campaigned together with him against Prousias and besieged him in Nikomedeia, after he had violated the treaties that were concluded with the mediation of the Romans, dedicated this to Zeus and Athena Nikephoros in return for the advantages acquired through the fortunate outcome of the war.
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