Answer
Following the demise of Antigonus I, control over Pamphylia and Lycia fell into the hands of Seleucus, a significant figure in ancient history. After the decisive confrontation at the Battle of Ipsus in 301 BCE, a pivotal event in the Wars of the Diadochi, Seleucus emerged as a prominent successor of Alexander the Great and established the Seleucid Empire, which would become a major power in the ancient world.