Analysis of the skeletal remains of this adult male, which were retrieved during archaeological excavations led by Professor M. J. O‘Kelly at the UNESCO World Heritage Site in the 1960s, marks him as the offspring of a first-order incestuous union, meaning, in plain language, his parents were very closely related. Such unions are a near-universal taboo for biological and cultural reasons, though given his privileged burial within the chamber of the Newgrange monument, his parentage was very likely to have been socially sanctioned.