After Rhoemetalces III of the Thracian Kingdom of Sapes was murdered in AD 46 by his wife, Thracia was incorporated as an official Roman province to be governed by Procurators, and later Praetorian prefects.
Da Reskuporis III i det thrakiske kongedømmet Sapes blev myrdet i år 46 af sin hustru, blev Thrakien underlagt som officiel romersk provins styret af en promagistrat, og senere af pretorianske præfekter.