Analysis of information sources in references of the Wikipedia article "Attalus II Philadelphus" in English language version.
He is present during the battle of Magnesia
supports the Roman commander Manlius Vulso during his war against the Galatians.
War against king Pharnaces of Pontus; territorial gains.
On his return, Eumenes is attacked near Cirrha, and believed to be death. Attalus II becomes king and marries queen Stratonice. When Eumenes returns, Attalus cedes power.
During the Third Macedonian War, the Romans start to distrust Eumenes and try to make Attalus king, but he is not willing to betray his brother.
Summer 152: Attalus II, together with Ariarathes V of Cappadocia, the Egyptian king Ptolemy VI Philometor, and Rome, support Alexander I Balas, usurper in the Seleucid Empire.
Attalus supports Nicomedes, who overthrows his father Prusias II of Bithynia.
