城堡

A castle holding (albeit one with a unique building to simulate Constantinople's famous walls.)

Castles are holdings held primarily by feudal lords. They pay lower taxes than cities and temples, but provide better levies, both in quality and quantity. Castles are the county seat (capital) for most counties; as such, their higher fort level as compared to temples and cities helps the county to better withstand sieges and raids.

Characters of the following government types can hold castles without penalty: feudal, iqta, monastic feudal, merchant republic, Confucian bureaucracy and Chinese imperial.

Castles are composed of buildings which must be upgraded to increase fort level, levies, or income. In addition to the buildings below, castles are allowed to build culture-specific buildings depending upon the culture of the holding's owner. Note that castles are the only source of cavalry levies, and the only holding type where cultural buildings and training grounds can be built.

Constructing a castle (or city) can prevent a formerly-normadic province from reverting due to nomad agitation.

Hindu characters must be of the caste before they can be granted castles.

Note that the effects of building upgrades stack.

基础数据

所有地产有其一定的基础数据，提供收入、要塞等级和征召兵，所以即使是新建的地产也有一定的价值。

	属性	值
	收入	4
	要塞等级	3
	征召兵	60 150 15

Castle Fortifications

These buildings increase fort level, increasing the time it takes an attacking army to siege the holding and reducing the amount of free loot available to raiders.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Castle Fortifications I	50 gold	182 days	+0.5 fort level
Castle Fortifications II	50 gold	182 days	+0.5 fort level	Castle Walls I Castle Fortifications I	Improved Keeps 1
Castle Fortifications III	50 gold	182 days	+0.5 fort level	Castle Fortifications II	Improved Keeps III
Castle Fortifications IV	100 gold	365 days	+1 fort level	Castle Fortifications III	Improved Keeps V
Castle Fortifications V	100 gold	365 days	+1 fort level	Castle Fortifications IV	Improved Keeps VII

墙垣

Walls increase levy size and fort level, raising the defensive capacity. They also slightly increase yearly income from the holding.

Walls	Price	Build time	Effects	Requirements	Tech Requirements
Castle Walls I	50 gold	365 days	+0.5 fort level +2.5% levy size +0.2 income
Castle Walls II	50 gold	547 days	+0.5 fort level +2.5% levy size +0.2 income	Castle Walls I	Improved Keeps I
Castle Walls III	100 gold	730 days	+1 fort level +5% levy size +0.2 income	Castle Walls II	Improved Keeps IV
Castle Walls IV	150 gold	1095 days	+1 fort level +5% levy size +0.2 income	Castle Walls III	Improved Keeps VI
Castle Walls V	150 gold	1460 days	+1.5 fort level +10% levy size +0.5 income	Castle Walls IV	Improved Keeps VIII
Theodosian Walls	150 gold	1460 days	+4 fort level	Castle Walls V, Constantinople

主楼

Keeps are arguably the most important building for castles. They increase garrison size, thereby increasing the defensive capacity of the holding, and increase levies, giving the holder the ability to field more troops.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Keep I	150 gold	547 days	+5% levy size +5% garrison size
Keep II	200 gold	730 days	+10% levy size +10% garrison size	Castle Walls I Keep I
Keep III	300 gold	1095 days	+15% levy size +15% garrison size	Castle Walls II Keep II	Improved Keeps II
Keep IV	400 gold	1460 days	+20% levy size +20% garrison size	Keep III	Improved Keeps IV
Keep V	500 gold	2190 days	+25% levy size +20% garrison size	Keep IV	Improved Keeps VI
Keep VI	500 gold	2190 days	+30% levy size +20% garrison size	Keep V	Improved Keeps VIII

Militia Training Grounds

Militia training grounds increase the output of light infantry and archers in a holding. Both are low quality troops, but tend to make up the majority of armies, being very numerous, and are two of the best troop types during the skirmish phase at the start of a battle.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Militia Training Ground I	100 gold	365 days	+80 light infantry +10 archers
Militia Training Ground II	120 gold	547 days	+50 light infantry +50 archers	Castle Walls I Militia Training Ground I	Castle Infrastructure I
Militia Training Ground III	200 gold	1095 days	+20 light infantry +90 archers	Militia Training Ground II	Castle Infrastructure V
Militia Training Ground IV	300 gold	1095 days	+30 light infantry +120 archers	Militia Training Ground III	Castle Infrastructure VII

Training Grounds

Training grounds are one of the key buildings that make castles the best holding for levies. This upgrade gives increased morale to all levies raised from the holding, which can make the difference between routing the enemy and being routed. Additionally, the increased levy reinforcement rate means that losses will be replenished faster, and is key when fighting a defensive war. This building is also useful if you intend to form your own mercenary band.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Training Grounds I	200 gold	730 days	+10% morale +10% levy reinforcement rate +20 retinue size	Castle Walls II
Training Grounds II	250 gold	1095 days	+15% morale +15% levy reinforcement rate +20 retinue size	Training Grounds I	Castle Infrastructure III
Training Grounds III	300 gold	2190 days	+20% morale +20% levy reinforcement rate +20 retinue size	Training Grounds II	Castle Infrastructure VI

Barracks

Barracks provide castles with heavy infantry and pikemen, which gives an army staying power and the ability to kill in the melee phase of combat.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Barracks I	100 gold	365 days	+30 heavy infantry +15 pikemen
Barracks II	120 gold	547 days	+40 heavy infantry +15 pikemen	Castle Walls I Barracks I
Barracks III	200 gold	730 days	+45 heavy infantry +20 pikemen	Castle Walls II Barracks II	Castle Infrastructure I
Barracks IV	300 gold	1095 days	+50 heavy infantry +25 pikemen	Barracks III	Castle Infrastructure III
Barracks V	400 gold	2190 days	+60 heavy infantry +25 pikemen	Barracks IV	Castle Infrastructure V
Barracks VI	500 gold	2190 days	+65 heavy infantry +30 pikemen	Barracks V	Castle Infrastructure VII

Stables

Stables are another key to the power of castles. They are the only way outside of culture specific buildings to acquire heavy cavalry (the best troop type in the game) and provide lots of light cavalry, which is an all around useful troop type, and great for chasing down fleeing armies.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Stables I	100 gold	365 days	+35 light cavalry
Stables II	120 gold	547 days	+45 light cavalry	Stables I Castle Walls I
Stables III	200 gold	730 days	+55 light cavalry	Stables II Castle Walls II	Castle Infrastructure II
Stables IV	300 gold	1095 days	+55 light cavalry +5 heavy cavalry	Stables III	Castle Infrastructure IV
Stables V	400 gold	2190 days	+55 light cavalry +10 heavy cavalry	Stables IV	Castle Infrastructure VI
Stables VI	500 gold	2190 days	+55 light cavalry +20 heavy cavalry	Stables V	Castle Infrastructure VIII

Castle Towns

Castle towns are the economic upgrade for castles, and are thus extremely important.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Castle Town I	100 Gold	365 Days	+2 income
Castle Town II	120 Gold	547 days	+2 income	Castle Town I Castle Walls I
Castle Town III	200 gold	730 days	+2 income	Castle Town II Castle Walls II	Castle Infrastructure II
Castle Town IV	300 gold	1095 days	+2 income	Castle Town III	Castle Infrastructure IV
Castle Town V	400 gold	2190 days	+2 income	Castle Town IV	Castle Infrastructure VI
Castle Town VI	500 gold	2190 days	+2 income	Castle Town V	Castle Infrastructure VIII

Shipyards

Castle shipyards are buildings that can only be built in coastal provinces; they provide ships that can be used to transport troops.

	Price (gold)	Build time (days)	Effects	Requirements	Tech Requirements	Notes
Castle Shipyard I	100	365	+4 galleys		Shipbuilding I	Only available in coastal holdings
Castle Shipyard II	100	730	+5 galleys	Castle Shipyard I	Shipbuilding II	Only available in coastal holdings
Castle Shipyard III	100	1095	+6 galleys	Castle Shipyard II	Shipbuilding III	Only available in coastal holdings
Castle Shipyard IV	100	1460	+7 galleys	Castle Shipyard III	Shipbuilding IV	Only available in coastal holdings

Cultural Buildings

主条目：Cultural_Buildings

Cultural Buildings and Steppe Cultural Buildings can be built in castles, varying in name and specific contributions to their levy on the culture of the province the castle holding is in.

Beyond contributing levy forces, many cultural buildings also give a bonus to the offence, defence, or morale levels of specific units. As these bonuses apply to the retinue of that character if these cultural buildings are built in the capital castle holding, placement of the capital can impact the quality of the army.

All Cultural Buildings, except for the Steppe Cultural Buildings, have the same requirements.

	Price (gold)	Build time (days)	Requirements	Tech Requirements	Notes
Cultural Building I	200	730	Castle Walls II	Improved Keeps II	Benefits will vary depending on the culture of the province
Cultural Building II	300	1095	Cultural Building I	Castle Infrastructure I	Benefits will vary depending on the culture of the province
Cultural Building III	400	2190	Cultural Building II	Castle Infrastructure II	Benefits will vary depending on the culture of the province
Cultural Building IV	500	2190	Cultural Building III	Castle Infrastructure IV	Benefits will vary depending on the culture of the province

Steppe Cultural Buildings exist for certain (steppe) cultures when building in steppe terrain, instead of the default Cultural Buildings.

	Price (gold)	Build time (days)	Effects	Requirements	Tech Requirements
Steppe Barracks I	100	365	+25 Heavy Infantry +20 Light Cavalry
Steppe Barracks II	120	547	+35 Heavy Infantry +20 Light Cavalry	Steppe Barracks I	Castle Walls I
Steppe Barracks III	200	730	+40 Heavy Infantry +25 Light Cavalry	Steppe Barracks II	Castle Walls II Improved Keeps II
Steppe Barracks IV	300	1095	+45 Heavy Infantry +30 Light Cavalry	Steppe Barracks III	Castle Infrastructure I
Steppe Barracks V	400	2190	+55 Heavy Infantry +30 Light Cavalry	Steppe Barracks IV	Castle Infrastructure III
Steppe Barracks VI	500	2190	+60 Heavy Infantry +35 Light Cavalry	Steppe Barracks V	Castle Infrastructure V
Steppe Stable I	100	365	+10 Horse Archers +25 Light Cavalry
Steppe Stable II	120	547	+20 Horse Archers +25 Light Cavalry	Steppe Stable I	Castle Walls I
Steppe Barracks III	200	730	+20 Horse Archers +35 Light Cavalry	Steppe Stable II	Castle Walls II Improved Keeps II Castle Infrastructure II
Steppe Barracks IV	300	1095	+20 Horse Archers +35 Light Cavalry +5 Knights	Steppe Barracks III	Castle Infrastructure IV
Steppe Barracks V	400	2190	+20 Horse Archers +35 Light Cavalry +10 Knights	Steppe Barracks IV	Castle Infrastructure VI
Steppe Barracks VI	500	2190	+20 Horse Archers +35 Light Cavalry +20 Knights	Steppe Barracks V	Castle Infrastructure VIII

Gompa Monasteries

Fortified gompas protect the monasteries and universities that lie within them. Can only be built by Monastic Feudal rulers.

Name	Price	Build time	Effects	Requirements	Tech Requirements
Gompa Monastery I	150 gold	547 days	+5% levy size +5% garrison size +2.5% tech spread rate +0.01 cultural tech points +0.05 liege piety
Gompa Monastery II	200 gold	730 days	+5% levy size +5% garrison size +5% tech spread rate +0.02 cultural tech points +0.05 liege piety	Gompa Monastery I Castle Walls I
Gompa Monastery III	300 gold	1095 days	+5% levy size +5% garrison size +7.5% tech spread rate +0.03 cultural tech points +0.05 liege piety	Gompa Monastery II	Church Infrastructure II
Gompa Monastery IV	400 gold	1460 days	+5% levy size +5% garrison size +10% tech spread rate +0.04 cultural tech points +0.05 liege piety	Gompa Monastery III	Church Infrastructure IV

Special Fortifications

This building chain is accessible when the owner or any liege of the castle has the Castellan or Peaceful-Castellan bloodlines. See Bloodline#Forged_Bloodlines

Name	Price	Build time	Effects	Requirements	Tech Requirements	Notes
Insulated Sections	125 gold	365 days	+0.5 fort level +5% morale			Requires an owner or any liege with the Castellan or Peaceful-Castellan bloodlines.
Killing Fields	250 gold	560 days	+1 fort level +5% morale +5% garrison size	Insulated Sections	Improved Keeps III	Requires an owner or any liege with the Castellan or Peaceful-Castellan bloodlines.
Extended Machicolations	450 gold	760 days	+1.5 fort level +15% garrison size +50 archers	Killing Fields	Improved Keeps V	Requires an owner or any liege with the Castellan or Peaceful-Castellan bloodlines.
Reinforced Barbican	750 gold	1250 days	+2 fort level +20% levy size +30% garrison size +100 light infantry	Extended Machicolations	Improved Keeps VII	Requires an owner or any liege with the Castellan or Peaceful-Castellan bloodlines.

Oppressive Fortifications

This building chain is accessible when the owner or any liege of the castle has the Murder-Builder bloodline. See Bloodline#Forged_Bloodlines

Name	Price	Build time	Effects	Requirements	Tech Requirements	Notes
Gloomy Monument	125 gold	365 days	-5% local revolt risk +.05 liege prestige		Castle Infrastructure II	Requires an owner or any liege with the Murder-Builder bloodline.
Connected Watchtowers	250 gold	560 days	+1 fort level -5% local revolt risk +5% garrison size	Gloomy Monument	Castle Infrastructure IV	Requires an owner or any liege with the Murder-Builder bloodline.
Lonely Spire	300 gold	560 days	+1 fort level -5% local revolt risk +5% garrison size	Connected Watchtowers	Castle Infrastructure VI	Requires an owner or any liege with the Murder-Builder bloodline.
Palace of Justice	450 gold	760 days	+1 fort level -5% local revolt risk +5% garrison size	Lonely Spire	Castle Infrastructure VIII	Requires an owner or any liege with the Murder-Builder bloodline.

地产