Qasrigu wuxuu lahaa derbi daah ah, waxaana ku wareegsanaa dooxo dhexroorkeedu gaadhayo 50 mitir oo leh munaarad weyn oo adag oo albaab u ah. Qasrigu wuxuu weli ahaa hanti uu lahaa Bishop of Roskilde ilaa Boqor Eric ee Pomerania uu ku xadgudbay xuquuqda qalcadda 1417. Ururka Hanseatic League ayaa weeraray qalcadda iyo Duqeynta Copenhagen intii lagu jiray Dagaalkii Dano-Hanseatic (1426<unk>1435)
Waxaad Weerarka waxaa difaacday 1428 Boqoradda Philippa, oo hogaaminaysay difaaca Qasriga Copenhagen.