Louisa, erstwhile Princess von Lowenstein, was the widow of a minor Prussian noble, and mother to Prince Siegfried von Lowenstein. In 1757, she married Stephan von Namtzen, Graf von Erdberg.

Personal HistoryEdit

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Lord John SeriesEdit

"Lord John and the Succubus"Edit

In the autumn of 1757, Louisa's castle is playing host to Captain Stephan von Namtzen, Landgrave von Erdberg's Imperial Fifth Regiment of Hanoverian Foot with the addition of their English liaison Major Lord John Grey. A series of mysterious deaths among the encamped German and English soldiers occur. The local rumor is that a succubus is to blame. Grey chooses logic and reason over superstition.

Louisa makes some flirtatious attempts to Grey. And after he saves her son, Prince Siegfried von Lowenstein, from an attempted abduction her attraction to him is that much greater. She gives him a gift for protection, a body part of the local Saint Orgevald. During one of her attempts to seduce Grey he informs her he as an agreement in England and they are caught a bit too close together by von Namtzen. In the end Louisa marries von Namtzen.

Lord John and the Brotherhood of the BladeEdit

Louisa is not present in this book but mentioned. While Stephan von Namtzen is recovering from his injury, she is at home taking care of the children.

The Scottish PrisonerEdit

In the wake of Louisa's death, Stephan von Namtzen has returned to London with his children Elise and Alexander to see them placed in the care of his sister. Louisa's son, Siegfried, returned to his grandmother, as he is the prince and heir of Lowenstein.


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Physical AppearanceEdit

Louisa had golden blond hair and blue eyes.


  • Louisa is the Latinate feminine form of Louis,[3] French form of Ludovicus the Latinized form of Ludwig.[4] Ludwig is from the Germanic name Chlodovech, which was composed of the elements hlud "famous" and wig "war, battle".[5]
  • von when it is used as a part of a German family name, von is usually a nobiliary particle and indicates a noble father's lineage.[6]
  • Lowenstein is a habitational name from any of several places called Löwenstein, composed of German Löwe "lion" + Stein "stone".[7]
  • Namtzen is a name of unknown origin and meaning.



  1. Louisa is not referred to as such in the books; Lord John met her when she was the widowed Princess von Lowenstein, and that is how he mentally refers to her, even after she becomes von Namtzen's wife.
  2. The mention of Stephan and Louisa's child was added during the copy-editing process for The Scottish Prisoner, and was included in the audiobook reading but failed to make it into the final manuscript for the printed and ebook versions. See this thread on Compuserve to read what Diana has said about the discrepancy.
  3. Behind the Name: Louisa - accessed 30 August 2016
  4. Behind the Name: Louis - accessed 30 August 2016
  5. Behind the Name: Ludwig - accessed 30 August 2016
  6. von - accessed via Wikipedia 30 August 2016
  7. Ancestry: Lowenstein - accessed 30 August 2016

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