Demetrius II was king last time we checked in with the kingdom of Macedon. In order to establish some context for the time period when both Macedon and Egypt were getting involved in Cleomenes of Sparta's war, we are going to have to introduce both Antigonus III and the young Philip V.

Sources for this episode:

• Bevan, E. R. (1902), The House of Seleucus (Vol. I). London: Edward Arthur.
• Rawlinson, G. (1871), A Manual of Ancient History, From the Earliest Times to the Fall of the Western Empire. Comprising the History of Chaldea, Assyria, Media, Babylonia, Lydia, Phoenicia, Syria, Judaea, Egypt, Carthage, Persia, Greece, Macedonia, Parthia, and Rome. New York: Harper & Brothers, Publishers.
• Author unknown, Wikipedia (date unknown), Antigonus III Doson (online) (Accessed c.16/04/2024).
• Author unknown, Wikipedia (date unknown), Philip V of Macedon (online) (Accessed 15/04/2024 and 16/04/2024).