He resisted successive invasions by the Illyrians, but was eventually killed in battle against them, leaving the crown to his infant son, Aeropus I. Philip's wife is unknown.
Ia berhasil menangkis sejumlah serangan dari Illyria, namun akhirnya namun akhirnya tewas terbunuh di medan perang, dan meninggalkan mahkota kepada putranya yang masih kecil, Aeropos I. Istri Philippos tidak diketahui.