==Uitbreiding van macht en prestige==Hoewel Philetaerus officieel onder opperheerschappij van de Seleuciden stond, genoot hij met Pergamon toch een soort semi-autonome positie. ###>Attalus I, the first Attalid king of Pergamon, explained that when Philetaerus was a baby, he was brought into a crowd where he was pressed upon and his testicles were crushed.