Philip of Brunswick-Grubenhagen

Philip of Brunswick-Grubenhagen (c. 1332 – 1369/70) was a younger son of Duke Henry II, called de Graecia, and his Cypriot wife Helvis of Ibelin. He made his career in the Latin East like his brothers and became Constable of Jerusalem.

By his first wife Helisia de Dampierre he had a daughter Helvis, wife of King James I of Cyprus, and a son John, later Admiral of Cyprus. His second marriage to Alix of Ibelin, widow of King Hugh IV of Cyprus, required a papal dispensation. He died on 4 August 1369 or 1370.