A Crown Princess was the daughter of a Padishah Emperor of the Known Universe and his Empress Consort, the wife or widow of the Crown Prince, and the recognized heiress apparent to the Golden Lion Throne. The title was historically only held by the members of the Corrino Empire.

Notable Crown Princesses

• Herade Corrino -- The beloved fiancee of the Imperial Crown Prince Raphael Corrino I who held the title for several decades, but he had his title was never withdrawn due to her late father-in-law, the Padishah Emperor Indriss Corrino I's leadership on the planet Kaitain.

• Anirul Corrino -- The most famous Bene Gesserit Reverend Mother of the Hidden Noble Rank who married the 81st Padishah Emperor Shaddam Corrino IV and became the mother of Irulan, Chalice, Wensicia, Josifa, and Rugi until she was killed by Piter de Vries.

• Irulan Corrino -- The eldest daughter of the 81st Padishah Emperor Shaddam Corrino IV by his late wife, Lady Anirul Sadow-Tonkin Corrino. was technically thel Crown Princess on Kaitain a long time right before her parents' untimely suspicious death.

Imperial and Noble Ranks of the Imperium [1]
God-Emperor, Padishah Emperor/Empress
Crown Prince/Princess, Padishahzadi, Prince/Princess Royal
Regent, Viceroy
Grand Patriarch
Patriarch
Archduke/Archduchess
Duke/Duchess
Count/ess
Viscount/ess
Baron/ess
Magnus
Chevalier, Knight