Desc: Prince of Pirates: Directed by Sidney Salkow. With John Derek, Barbara Rush, Carla Balenda, Whitfield Connor. In a 16th century kingdom in the Netherlands, the newly crowned King Stephan concludes a secret treaty with the Spanish. This puts him at odds with his younger brother, Prince Roland, who favors a treaty with the French. Stephan orders Roland imprisoned but Roland escapes and leads a revolt.