Stora Sundby Castle

59°16′13″N 16°07′35″E / 59.27028°N 16.12639°E / 59.27028; 16.12639TypeCastle

Stora Sundby Castle (Swedish: Stora Sundby slott) is a castle in Eskilstuna Municipality, Södermanland County, Sweden. The architectural features of the castle resemble those of a calendar, four large towers symbolizing the seasons, twelve small towers symbolizing the months of the year, 52 rooms symbolizing the weeks of the year, and a window for each day of the year (365). The architect was Peter Frederick Robinson.

The castle is used as The Royal Palace in Netflix Nordic's hit show Young Royals.