If I’m not mistaken – and since I’m a smart guy the chance is almost nihil – ‘Arkona’ is the name of a cape on the Rügen island, nowadays in Germany (Baltic Sea, close to Poland), where the Slavic fortress Jaromarsburg was built. Like many castles, it has been a source of inspiration for many Metal bands. Behemoth’s first recordings, for example (at the time that they did still play ‘real’ Black Metal), referred to that era / area, but there are quite some bands named after that specific historical place too.