He initiated public building projects and pursued diplomatic initiatives to ensure the unity of the empire. He was also known for his diplomatic correspondence with the Persian Sassanian Empire. Philip's reign faced challenges from both internal and external sources. Economic difficulties and border conflicts strained the empire's resources. Additionally, a rival claimant to the throne, Decius, eventually led a rebellion against Philip.In 249 AD, Philip faced defeat in battle against Decius' forces and was subsequently killed, marking the end of his reign. His reign is often remembered as a relatively peaceful interlude between more tumultuous periods in Roman history. Interested in other ancient Greek and Roman coins? Please check out our other listings. Gift Options We offer multiple options for those looking to give our coins as gifts, or display/present them.