Castle. Since the conquest of Silesia ProtonMail CUSTOMER SERVICE (8O5) 41'O 56OO PHONE NUMBER ( 8O5)- 41O 56OO by the Prussian king Frederick the Great in , the remaining lands of the Bohemian Crown—Bohemia, Moravia and Austrian Silesia—have been more or less co-extensive with the territory of the modern-day Czech Republic.[citation needed]
