In 1977, Greek archaeologist Manolis Andronikos started excavating the Great Tumulus at Aigai near modern Vergina, the capital and burial site of the kings of Macedon, and found that two of the four tombs in the tumulus were undisturbed since antiquity. Moreover, these two, and particularly Tomb II, contained fabulous treasures and objects of great quality and sophistication.
The heroon at Vergina in Macedonia (the ancient city of Aegae – Αἰγαί) is thought to have been dedicated to the worship of the family of Alexander the Great and may have housed the cult statue of Philip. It is probable that he was regarded as a hero or deified on his death. Though the Macedonians did not consider Philip a god, he did receive other forms of recognition from the Greeks, e.g. at Eresos (altar to Zeus Philippeios), Ephesos (his statue was placed in the temple of Artemis), and at Olympia, where the Philippeion was built.
A study of the bones published in 2015 indicates that Philip was buried in Tomb I, not Tomb II. On the basis of age, knee ankylosis and a hole matching the penetrating wound and lameness suffered by Philip, the authors of the study identified the remains of Tomb I in Vergina as those of Philip II. Tomb II instead was identified in the study as that of King Arrhidaeus and his wife Eurydice II. However this latter theory had previously been shown to be false.