Imperial cult

The Ptolemaic dynasty based its own legitimacy in the eyes of its Greek subjects on their association with, and incorporation into, the imperial cult of Alexander the Great.

Romulus, the legendary founder of Rome, was heroized into Quirinus, the "undefeated god", with whom the later emperors identified and of whom they considered themselves incarnations.

Varro spoke of the initiatory mystery and power of Roman regality (adytum et initia regis), inaccessible to the exoteric communality.

In Plutarch's Phyrro, 19.5, the Greek ambassador declared amid the Roman Senate he felt instead like being in the midst of "a whole assembly of Kings".

Emperor Diocletian further reinforced it when he demanded the proskynesis and adopted the adjective sacrum for all things pertaining to the imperial person.

In ancient Japan, it was customary for every clan to claim descendance from gods (ujigami) and the Imperial Family tended to define their ancestor as the dominant or most important kami of the time.

[1] However, in the 14th century, most religious figures and philosophers in Japan thought that excessive veneration of the state and the emperor would consign one to hell.

The concept gained its elaborate manifestations in ancient Java and Cambodia, where monuments such as Prambanan and Angkor Wat were erected to celebrate the king's divine rule on earth.

Ancient Egyptian pharaohs were worshipped as god-kings.
Augustus as Jove , holding scepter and orb (first half of 1st century AD). The imperial cult of ancient Rome identified emperors and some members of their families with the divinely sanctioned authority ( auctoritas ) of the Roman Empire . The official offer of cultus to a living emperor acknowledged his office and rule as divinely approved and constitutional: his Principate should therefore demonstrate pious respect for traditional republican deities and mores . [ citation needed ]
Emperor Hirohito was the last divine Emperor of Japan.