Martinus Polonus (Oppaviensis or Strepus) (-1278), Chronicon Pontificum et Imperatorum.
  • Rouen, Bibliothèque Municipale, U30 [1354] (14th century).
    • Quoniam scire tempora summorum pontificum . . .
    • . . . decessit in die cene et vacavit sedes.
    • Popes to 1288, emperors to 1270.