English: The Bailiwick of Brandenburg of the Chivalric Order of Saint John of the Hospital at Jerusalem (in German, the Balley Brandenburg des Ritterlichen Ordens Sankt Johannis vom Spital zu Jerusalem), or simply the Order of Saint John (Der Johanniterorden), is the German Protestant branch of the Knights Hospitaller, the oldest surviving chivalric order, which generally is considered to have been founded in Jerusalem in the year AD 1099. This is the star or "breast badge/cross", worn by all ranks of the order. From the collections of the Swedish Army Museum.