Rikke Agnete Olsen 
Danish Medieval Castles [PDF ebook] 

Danish Medieval Castles is the first comprehensive overview in English of the castles and fortifications that are known from medieval Denmark. The book tells the story of who built the castles, when they did so, and why this happened.Over the past decades several castle buildings and earthworks have been examined, a few new archaeological sites have been found, and old excavations have been reopened. All of this has resulted in new knowledge. The book also describes everyday life in Dansish castles in the Middle Ages, and examines the historic importance of the castles in times of peace and turbulence.