Since there are quite a few who ask for this mod to come back, so I just put it back on, but the bug may still not yet be fixed, so just you know.

Tested on 1.5.6. 
This is a mod that generate a random clan that invade random kingdom weekly.
The generated clan will have random culture, custom culture would also be selected if it is main faction.
Member of the invasion clan are currently all the same and only consists of male lord.
The invasion clan will target kingdom with multiple castles ONLY.
Once they have a targeted kingdom, they will conquer one of their castle immediately, so the garrison of the castle will not suffer any loss.
Then they will spawn their party inside the castle and form a new kingdom to declare war with the previous settlement owner, so the war begins.

Configuration:
File Location:
..\Mount & Blade II Bannerlord\Modules\RandomClanInvasion\bin\Win64_Shipping_Client
Explanation:


• enableLog: 
  

Allow logs to appear in the left corner message box (Default: true)

• maxClans: (Default: 120, should be safe)
  

The maximum clan on the map, if the clan limits has reached, the invasion clan will no longer spawn.

• maxClanMemebers, minClanMemebers: 
  

The number of clan member for invasion clan, get a random number between it.

• maxClanTier, minClanTier: 
  

The clan tier for invasion clan, get a random number between it. (Min = 1, Max = 6)

• clanAdditionBasicTroop, clanAdditionBasicEliteTroop: 
  

The additional start up Tier 1 basic and noble troops for each invasion lord party 
Steward skill or other limit is still a thing though, so giving too much are pointless)

• maxKingomPolicy, minKingomPolicy: 
  

The number of policy for the kingdom of invasion clan, get a random number between it. 
(Min = 0, Max: Not exceeding the amount of policy)

• clanInitialWealth: 
  

The initial gold that the invasion clan member can have, it would divided by the number of clan members.

• invasionMode: The condition for the targeted kingdom
  

Random: Random faction that have multiple castle
Strong: Kingdom with strongest strength that have multiple castle
Weak: Kingdom with weakest strength that have multiple castle

• invadePlayer: 
  

Allow invading the player kingdom & clan (Default: false)

• invadeInvader: 
  

Allow invading the invader kingdom & clan (Default: false)

•  invaderSpawnWithSettlement: (Default: true)
  

Set to true: invader spawn with settlement; Set to false: invader will form an army when spawned 

Known Issues: 

• There may be still some random bug that may crash to your save, so use at your own risk just like any other mod.
• Prevent having too many clans and clan members
  

Strongly Suggested Mod to Use With:
Separatism: The invasion clan then can join other kingdom if destroyed or needed.
Houses of Calradia: Allow marriage between clan.

Check Out My Other Mods~