Prison of Despair
Prison of Despair, the old version of the new and improved Dread Prison. This prison was the original solution for locking up anyone who crossed you wrong while adventuring in Skyrim. You can find the entrance in the northwest of Hjaalmarch, just south of Dragon Bridge. This mod took inspiration from the Oblivion mod Carcernus Prison.
For complete details, please check out the mod’s Nexus page.
* WhateverDev does not condone owning prisons of any kind, especially medieval and inhumane ones, obviously.