Attalus' son, Eumenes II (197–159 BC) also collaborated with Rome to defeat Antiochus the Great at the Battle of Magnesia in 190 BC. In the subsequent Peace of Apamea two years later he received Phrygia, Lydia, Pisidia, Pamphylia, and parts of Lycia from the former Seleucid possessions. He subsequently enlarged and adorned the city, building amongst other things the Great Altar. His brother Attalus II Philadelphus (c. 160–138 BC) fought with the Romans against Galatia and Bithynia and founded the cities of Philadelphia and Attalia.