I always thought the Palace of the Kings was a bit empty, also why Ulfric is all alone? What is he fighting for beside his Nord "brothers"?
I thought it would be nice and kinda plausible if he had a full family. So I now added 3 new NPCs in the palace:

- Hella, Ulfric's wife. She's just a regular citizen, you'll find her sandboxing in the palace and nothing more. She uses the Female Nord voice.

- Bjorn Stormcloak, Ulfric's younger brother. He's a two-handed Barbarian. His face is a younger version of my Ulfric replacer (you can also download that for FULL IMMERSION).  I made this NPC specifically for those that would have wanted to have a Ulfric follower, since for plot reason this can't be happening. And of course he's marriageable. He uses the Male Nord voice.

- Mera Stormcloak, Ulfric's daughter. I imagined her like a bit of a tomboy, that still wants to fight beside her father. She's a ranger and an Ice mage. Potential follower and marriageable. I tried to gave her a unique look but also make her resemble her father (or my version of him xD). She uses the Female Young Eager voice.

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"But this is not lore friendly!"
Yes, I know. But it could be.

Do they have custom voice lines, quests etc?
Not yet, but I'll might add some in the future.

What happens if I win the civil war as an Imperial?
Nothing. They will still be in the palace. I didn't want to add more scripts to bloat the game.
The 2 followers can be relocated manually if you use a follower framework. Ulfric's wife will still be there, make of that what you wish. (I only made her protected so you can kill her if you want her to follow her husband's fate). I might consider adding some package to have her move out like the other Jarls if I figure out how (any suggestions would be appreciated).

What if I fight for the Empire? Can I still have them as followers?
Yes. They are pre-built as your allies so they will always fight on your side.
Maybe they changed their minds, maybe they had a disagreement in the family. Role playing is fun like that :D

But I want to kill them because the Empire said so. Can you make them hostile if I'm in the Legion?
Bjorn and Mera are Essential, so they can't be killed (but if you use a follower framework like EFF you can change their status to protected and kill them anyway). I still let the option open for Hella if you really don't want her around.
BUT I do not intend to change their factions to be hostile to Imperials, sorry.
This mod is best suited for a Stormcloak playthrough, if you want more warriors to fight on your side, I didn't make the NPCs to be slaughtered by some Thalmor's boot licker. (For legal reasons, that is a joke).

If you want to play for the Empire maybe you'll consider using also the son of Tullius :D

Let me know if something doesn't work.

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Now let's get down to the usual info:

They will use your default body and skin textures (final look may vary depending on your setup).

ESP flagged light.

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Compatibility:
- Any version of Skyrim SE/AE is fine.
- Fully compatible with Guards Armor Replacers, Sons of Skyrim, or similar mods that change the Stormcloak uniforms (if you don't have any, they will use the vanilla armor).
- If you have a mod that changes the interior of the Palace, their spawn points might get misplaced but they should still work with most of them (tested with JK's with no issues).
- They are new NPCs, I didn't touch any of the vanilla records so you shouldn't have other problems.
- No scripts, you can install, update or uninstall at any point in the game (just dismiss the followers first).

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Credits:

• Expressive facegen morphs 
• KS hairdos (included)
• Salt and Wind textures (included)
  

Recommended Mods for a look similar to the pictures:

• Any skin textures of your choice (in the pictures I use Bijin for females and Loverboy for males)
• Beards and Brows 
• Any eye retexture of your choice