Overview
Attalus II Philadelphus (Greek: Ἄτταλος Β΄ ὁ Φιλάδελφος, Attalos II Philadelphos, which means "Attalus the brother-loving"; 220–138 BC) was a ruler of the Attalid kingdom of Pergamon and the founder of the city of Attalia (Antalya).
Family
He was the second son of Attalus I Soter and queen Apollonis of Cyzicus, and ascended the throne first as co-ruler alongside his ailing brother Eumenes II in 160 BC, whose widow Stratonice of Pergamon he married in 158 BC upon Eumenes' death.
Biography
Prior to becoming king, Attalus was already an accomplished military commander. In 192 BC he was sent by his brother Eumenes to Rome to warn against Antiochus III. In 190 BC, he was present in the Battle of Magnesia which resulted in a defeat against the Seleucids. Around 189 BC he led his forces to fight alongside the Roman Army under Gnaeus Manlius Vulso in Galatia. From 182-179 BC, he successfully defeated the Kingdom of Pontus under Pharnaces I, gaining some territory. In 172, Eumenes, returning from a visit to Rome, was attacked near Cirrha and was believed to be dead. Attalus, upon learning of this, married his brother's widow Stratonice and became king of Pergamon. When his brother returned, he divorced Stratonice and ceded the power to his elder brother without a fight.
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