While Apollonius was at Pergamum he met Eudemus of Pergamum (not to be confused with Eudemus of Rhodes who wrote the History of Geometry) and also Attalus, who many think must be King Attalus I of Pergamum.
Habang Apollonius ay sa Pergamum siya matugunan Eudemus ng Pergamum (hindi na-lito sa Eudemus ng Rhodes sino wrote ang Kasaysayan ng geometry) at din Attalus, na maraming mga tingin ay dapat King Attalus ko ng Pergamum.