Columbia subject headings:
Harvard subject headings:
Frederick II, King of Prussia, 1712-1786--Family.
Frederick William I, King of Prussia, 1688-1740.
Prussia (Germany)--Kings and rulers--Biography.
Princeton subject headings:
Frederick II, King of Prussia, 1712-1786--Childhood and youth.
Frederick II, King of Prussia, 1712-1786.
Frederick William I, King of Prussia, 1688-1740.
Prussia (Germany)--Kings and rulers--Biography.