Traveling under the name of Yolanda, Princess Mary of
Burgundy falls in love with Maximillian, disguised as a knight, at a
silk fair. Later he is imprisoned by conspirators but is saved
from execution by the princess.
Threatened by war with the Swiss, her father, the
duke, cancels her matrimonial plans and betroths her to the
half-witted Dauphin of France. Maximillian rescues her from
the French court and, following the duke's death, leads the
Burgundians to victory in battle. The wedding of Maximillian
and Mary is then announced.