---- I am bad at writing descriptions  ----

If you don't play with the Requiem mod installed you won't need this patch.
If you came here because you liked the looks of the Mask.  Download it here: Open Dragon Priest Masks :)   (Remember to endorse Calyps work)
You'll probably want to use Apophysis Textures as well.  Those 2 mods work great together.   (Cave bears love to munch on people that don't endorse, so remember to give Apophysis all the deserved love as well)

That's... that's pretty much it... I think....
mmmm...  I don't know what else to write in the description. 

Here's a funny picture of a guy Cosplaying as Morokei I found on google
 
---- How to install  ----

1) Extract the .esp in your Data folder (Preferably using a Mod Manager program)

2) Activate the .esp

3) Make sure your load order looks something like this:

(...)
calyps-dragonpriestmasks.esp
(...)
Requiem.esp
(...)
calyps-dragonpriestmasks-Requiem.esp
(...)

So remember to force LOOT to load Requiem.esp after calyps-dragonpriestmasks.esp and to load "calyps-dragonpriestmasks-Requiem.esp" after Requiem.esp

4) Run Requiem's Patcher

5) Be happy

---- How to uninstall ----
This mod can be installed and uninstalled at any time, regardless if you have or haven't got a Mask on your character. There's absolutely zero risk in removing it mid-save.... so don't worry. Here's how you remove this mod:

1) Hurt my feelings
2) Delete .esp 
3) Run Requiem's Patcher


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Credits:
Calyps for Open Dragon Priest Masks

Programs Used: 
TES5Edit