Antigonus III Doson vs Emperor Nintoku

After Demetrius II's death, Antigonus III Doson became regent for the infant Philip V. He effectively ruled Macedon, stabilizing the kingdom after the defeat and death of his predecessor.

Antigonus III Doson led a coalition of Greek states to defeat the Spartan king Cleomenes III at Sellasia. This victory ended the Cleomenean War, restored Macedonian hegemony over the Peloponnese, and forced Sparta into submission.

Antigonus III Doson died suddenly from an illness, possibly tuberculosis, while campaigning against the Illyrians. His death ended a successful regency and left the throne to the young Philip V, who would later challenge Rome.

Emperor Nintoku's reign is traditionally dated from 313 to 399 AD and is considered a period of stability and prosperity for the Yamato state. He is credited with expanding agricultural infrastructure and consolidating the imperial line's authority.

Emperor Nintoku is said to have ordered the construction of irrigation canals and rice paddies to boost agricultural output. These projects are recorded in the Nihon Shoki as having alleviated famine and strengthened the economic base of the Yamato court.

Emperor Nintoku commissioned the construction of the Daisen Kofun in Sakai, Osaka, the largest keyhole-shaped burial mound in the world. The tomb measures 486 meters in length and is surrounded by three moats, reflecting the immense power and resources of the Yamato state.