“
Manshoon was not related to the Shoon dynasty as far as I'm aware. His body was co-opted by another being during his early life as revealed in the Nine Jewels of Neverwinter on DMs Guild by Eric Boyd and George Krashos. If you do not consider their work to be canon I can assure you that it is the truth about Manshoon (although the source is not mine to reveal).
”
— GDallison#8436
The Nine Jewels of Neverwinter is canon Realmslore, and Manshoon is not related to the Shoon dynasty.
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