EntityQ1779071· pop 19· linked from 45 articlesNyköping CastleSign in to savemedieval castle in Nyköping, SwedenConnectionsMiddle AgesEntityChristmasConceptSwedishEntitygeographic coordinate systemEntityKalmar UnionEntityNyköpingEntityGustav I of SwedenEntitySigismund III VasaEntityCharles IX of SwedenEntityruinsEntityfiefdomEntitySödermanlandEntityStockholm PalaceEntityBirger JarlEntityAlbert, King of SwedenEntityBirger, King of SwedenEntityEric MagnussonEntitycastellumEntityValdemarEntityBattle of StångebroEntityCategoriesBuilding and structure articles needing translation from Swedish WikipediaCastles in Södermanland CountyListed buildings in SwedenNyköpingRoyal residences in SwedenRuined castles in Sweden