Columbia subject headings:
Gustaw Eriksson Vasa, 1566-1607.
Princes--Sweden--Biography.
Sweden--History--Eric XIV, 1560-1568.
Sweden--History--John III, 1567-1592.
Harvard subject headings:
Princeton subject headings:
Gustaf Vasa, Prince, son of Erik XIV, King of Sweden, 1566-1607.
Princes--Sweden--Biography.