Some of the most important trading ports during the period include both existing and ancient cities such as Jelling (Denmark), Ribe (Denmark), Roskilde (Denmark), Hedeby (Denmark, now Germany), Aarhus (Denmark), Vineta (Pomerania), Truso (Poland), Kaupang (Norway), Birka (Sweden), Bordeaux (France), Jorvik (England), Dublin (Ireland) and Aldeigjuborg (Russia).