A team of archaeologists, biologists, chemists and historians affiliated with several institutions in Europe and the U.K. has found evidence that the remains found in the Tomb of Persephone, in the Great Tumulus of Vergina, are not those of Philip II of Macedon, as previously thought. In their paper published in the Journal of Archaeological Science, the group describes their study of the remains found in the tomb.

In 1977, researchers discovered the Great Tumulus of Vergina in northern Greece. The original find turned out to be a series of tombs, all of which were created to entomb members of the Argead Dynasty—the family who created the Kingdom of Macedonia.

After much research and debate, some historians decided that one of the tombs, known as the Tomb of Persephone, held the remains of Philip II of Macedon—Alexander the Great’s father, along with his wife, Cleopatra, and their newly born son. Some speculate that all three were murdered at the behest of Phillip’s ex-wife, who wanted her son to take over the throne sooner rather than later.