Demesne

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Alert demesne.png A demesne is a character's collection of personal holdings.

A character's demesne (pronounced /dɪ'meɪn/, almost but not quite like "domain") will usually provide the majority of their income, as well as a decent amount of levies. It is within one's demesne that most construction occurs, including construction of new settlements in empty slots.

Each ruler has a demesne limit, and exceeding it causes a penalty to taxes and levies. This limit is what forces kings to distribute power to vassals rather than directly controlling their entire realm. A ruler's demesne limit is based on tier, personal and spouse stewardship, succession type, and centralization law.

Icon demesne.png Demesne limit[edit]

When a ruler is over their demesne limit, they suffer penalties due to inefficiency:

  • Reduced opinion from vassals (-10 per settlement over limit)
  • Reduced demesne levies, except in the capital (-20% per, up to -90% with the 5th)
  • Reduced demesne income (-20% per, up to -90% with the 5th)
  • Reduced tax from vassals (-20% per, with no cap)

There is a 2-month grace period when a ruler goes over their limit due to acquiring new titles. However, if a ruler goes over their limit due to a reduction in stewardship skill, the penalties kick in immediately.

The demesne limit is (the \lfloor x \rfloor notation refers to rounding down x to the nearest integer):

DemesneLimit = \left\lfloor \left(RankBaseDemesne + StewardshipBonus\right) \cdot GavelkindBonus \right\rfloor + LawBonuses

Gavelkind[edit]

Gavelkind Bonus = 1.3 (+30%) if you are under Gavelkind or Elective gavelkind succession law, 1 otherwise.

Rank[edit]

Each rank has a base demesne value:

Rank Base demesne Notes
Baron/Count/Duke 1
Great Duke 2 A "Great Duke" is a Duke with 2 or more duchy titles.
King 3
Emperor 4

Patricians have different base demesne sizes than feudal lords. The base is 2 for a patrician and 3 for a doge, no matter what rank title they hold.

Stewardship[edit]

The stewardship bonus is (in case of polygamy, only the primary spouse's stewardship is used):

StewardshipBonus = 0.15 \cdot \left(PersonalStewardship + \left\lfloor {\frac{SpouseStewardship}{2}} \right\rfloor\right)

Here is a table of the PersonalStewardship + \left\lfloor {\frac{SpouseStewardship}{2}} \right\rfloor values required to achieve a certain increase in demesne limit relative to the limit you would have without Gavelkind and with 0 stewardship (note that this is different from the stewardship bonus, since the actual stewardship bonus is multiplied by 1.3 in the case of Gavelkind):

Succession Rank +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16
Not Gavelkind any 7 14 20 27 34 40 47 54 60 67 74 80 87 94 100 107
Gavelkind Duke 4 9 14 19 25 30 35 40 45 50 55 60 66 71 76 81
Gavelkind Great Duke 3 8 13 18 23 28 33 38 44 49 54 59 64 69 74 79
Gavelkind King 1 6 11 16 22 27 32 37 42 47 52 57 63 68 73 78
Gavelkind Emperor 0 5 10 15 20 25 30 35 40 46 51 56 61 66 71 76

This table can be computed using x = \left\lceil\frac{\frac{RankBaseDemesne+k}{GavelkindBonus} - RankBaseDemesne}{0.15}\right\rceil

Tribal[edit]

Tribal rulers get a +2 bonus to their demesne, at a cost of -10 to their vassal limit.

Law bonuses[edit]

Centralization Bonus depends on the Centralization law, available to dukes and above:

Level Decentralized Low Centralization Medium Centralization High Centralization Centralized
Bonus +0 +1 +2 +3 +4

With the Conclave DLC, absolutism gives +2 demesne size. (All council laws in favor of the ruler.)

Breakdown[edit]

The in-game tooltip breakdown may be confusing, as values are rounded as integers for display, but formula uses float values behind.

Here's an example illustrating the tooltip discrepancy for a king with 12 stewardship married to a wife with 9 stewardship under gavelkind succession:

  • Rank Base Demesne: 3*1 = 3, displayed as +3
  • Stewardship Bonus: 0.15 * (12 + 0.5*9) = 2.4, displayed as +2
  • Gavelkind: 30% * 5.4 = 1.6, displayed as +1
  • Total: 3 + 2.4 + 1.6 = 7, displayed as +7 and not +6

Wrong settlement type[edit]

Characters get a 75% penalty to income and levies in demesne settlements that do not match their government type. These settlements should generally be given to a vassal of the correct type or to a courtier (who will automatically take on the correct type).

  • Tribal rulers can only hold tribes without penalty
  • Nobles can hold castles and tribes
  • Patricians can hold cities and castles
  • Muslim nobles can hold mosques, and gain extra piety if they do. Muslim patricians can no longer hold mosques without penalty.
  • Nomads cannot hold any settlement without penalty except their nomadic capital.
Realm
Landed titles
Concepts
De jureDemesneFeudalismTitular titleCouncilCouncil vote