Frederick III (Crown Prince of Prussia, and Emperor of Germany) died of cancer of the larynx in 1888. In Drame Imperial (1888) journalist Jean de Bonnefon asserted that the disease was not cancer but syphilis which the Crown Prince acquired in 1869 in Suez. What de Bonnefon wrote about the prince does not coincide with the prince's itinerary published in the London Times. This discrepancy is examined and the reason for de Bonefon's claim is considered. The report that Crown Prince Frederick of Prussia caught syphilis in Suez is a canard.