The Auctarium Prosperi Havniense (or Continuatio Prosperi Havniensis) is an anonymous continuation of the Chronicle of Prosper of Aquitaine, embodied in a manuscript at Copenhagen (Latin: Havnia, hence Havniense); it was given this appellation by Theodor Mommsen. Written in Latin in Italy, it covers the periods 455–457 and 473–625. It is an important source for the early Lombard kingdom.^[1]