Columbia subject headings:
Denmark--History--Erik Glipping, 1259-1286.
Denmark--History--Erik Menved, 1286-1319.
Erik V, King of Denmark, approximately 1249-1286.
Erik VI Menved, King of Denmark, 1274-1319.
Excavations (Archaeology)--Denmark--Hjelm.
Hjelmsø (Denmark)--History.
Kattegat (Denmark and Sweden)--History.
Outlaws--Denmark--History--13th century.
Harvard subject headings:
Archaeology and history--Denmark--Hjelm Island.
Denmark--History--Erik Glipping, 1259-1286.
Denmark--History--Erik Menved, 1286-1319.
Erik V, King of Denmark, approximately 1249-1286.
Erik VI Menved, King of Denmark, 1274-1319.
Excavations (Archaeology)--Denmark--Hjelm Island.
Hjelm Island (Denmark)--Antiquities.
Hjelm Island (Denmark)--History.
Hjelmsø (Denmark)--History.
Kattegat (Denmark and Sweden)--History.
Outlaws--Denmark--History--13th century.
Princeton subject headings: