* The jarls of [[Skyrim:Winterhold|Winterhold]] do not employ court wizards. This is likely due to the close proximity of the [[Skyrim:College of Winterhold (place)|College of Winterhold]].
* [[Skyrim:Aicantar|Aicantar]], [[Skyrim:Melaran|Melaran]], and [[Skyrim:Dravynea the Stoneweaver|Dravynea the Stoneweaver]] all belong to the court wizard faction. They are all replacements, but Calcelmo and Wuunferth are essential, preventing Aicantar and Dravynea from being needed. Melaran replaces Sybille in the event of her death.
* Depending on the choices you make during [[Skyrim:Blood on the Ice|Blood on the Ice]], Wuunferth the Unliving may become unavailable for bartering with.