Faith
Each character will follow a faith, a specific denomination of one religion which dictates how a character should live.
Fervor[edit | edit source]
Fervor is a measure of how righteous adherents believe that a faith is and ranges from 0% to 100%. Fervor determines how expensive it is for rulers to create new faiths and how likely counties and characters are to convert.
Fervor increases at a rate of +3.5 each year, modified by the virtues and sins of religious leaders, particularly the head of faith. Fervor grows more slowly for faiths followed in more than 20 counties. New faiths start at 100% fervor, while historical ones start at 50%. A faith without a head of faith will gain +50 Fervor if the head of faith title is created.
At below 40% Fervor, Heresies can happen, with the chance increasing every 10% below that. When the outbreak occurs, each ruler that embraces the heresy will add 15% fervor to the religion they are defecting from.
Fervor is modified by the Holy War casus belli. Attackers in holy wars lose fervor, while defenders gain fervor.
Conversion[edit | edit source]
Each character can convert to a different faith at any point. To do so, click on the Faith button on the bottom left corner of the screen (between the House and Culture buttons) and select the desired Faith from the Other Faiths menu.
Conversion costs piety based on the difference between the doctrines of the new faith and the doctrines of the old one. The cost can also be affected by the following:
- −1% per Learning attribute of character
- −15% if old faith has Pluralistic doctrine
- −20% if holding Stonehenge special building in Salisbury
- −25% if both old faith and new faith has Pluralistic doctrine
- −25% if converting to the faith of a concubine
- −35% if converting to an existing faith
- −50% if converting to an existing faith within the same religion
- −50% if converting to the faith of a spouse
- −50% if converting to the faith of an attacker in a Holy War
- −50% if character's dynasty has 3 legacies in the Adventure tree
- −75% if character has the Apostate lifestyle perk
- −150% if the new faith exists in the realm or a neighboring realm and same religious family
- −225% if converting to an organized faith from an unreformed faith
- −225% if converting to the faith of a concubine while old faith is unreformed
- −250% if converting to the faith of a spouse while old faith is unreformed
- −250% if converting to the faith of an attacker in a Holy War while old faith is unreformed
- −250% if the new faith exists in the realm or a neighboring realm and different religious family
- +25% if the new faith is unreformed while having clan government
- +50% if the new faith is unreformed while having feudal government
- +75% if the new faith is unreformed while having republican government
- +100% if the new faith belongs to a different religion within the same religious family
- +200% if the new faith belongs to a different religious family
- +500% if the new faith is unreformed while the old faith is organized
- +500% if the new faith's religion is dead
New faiths[edit | edit source]
A ruler who is at peace can create a new faith for a religion once per lifetime by spending a very large amount of piety. The farther the new faith's tenets will be from the character's original faith, the more piety it will cost to change it. Once a new faith is created, the ruler, their close family and their realm capital will instantly convert. Vassals may convert depending on their opinion and difference in
learning. New faiths inherit the holy sites of the original faith.
A ruler who is a vassal cannot create a new faith unless their primary title rank is at least duke.
A new faith cannot have both its tenets and doctrines entirely identical to those of an existing faith.
Reformation[edit | edit source]
Faiths that are unreformed can be reformed by a ruler who controls at least 3 holy sites by spending a large amount of piety. Upon reformation, the new faith will keep the name of the old faith while the old faith will be renamed.
When reforming their faith, AI rulers will never change tenets or doctrines except possibly for those regarding the head of faith.
List of Abrahamic faiths[edit | edit source]
Christianity[edit | edit source]
Christian faiths have the special doctrine Teachings of Jesus, which makes them treat faiths with the Christian Syncretism tenet as hostile instead of evil, and neutralizes opinion penalties with them. Some of them also have the Ecumenism main doctrine, which treats faiths with the same doctrine as astray instead of hostile.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Ecumenism | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Catholicism![]() |
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Orthodoxy![]() |
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Coptic![]() |
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Apostolic![]() |
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Insularism![]() |
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Krstjani![]() |
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Conversos![]() |
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Nestorianism![]() |
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Bogomilism![]() |
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Catharism![]() |
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Iconoclasm![]() |
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Lollardy![]() |
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Paulicianism![]() |
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Waldensianism![]() |
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Messalianism![]() |
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Adamitism![]() |
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Mozarabism![]() |
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Adoptionism![]() |
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Islam[edit | edit source]
Muslim faiths have the special doctrine Teachings of the Prophet, which makes them treat faiths with the Islamic Syncretism tenet hostile instead of evil, and neutralizes opinion penalties with them. They also have the main doctrine Muhammad's Succession, which divides them into the Sunni, Shia, Muhakkima and Zandaqa sub-groups. Members of sub-groups largely treat each other as astray instead of hostile; only the Zandaqa group still treats others as hostile, but will also get +5 advantage against co-religionists. Some Muslim faiths don't have access to the Undertake the Hajj decision.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Muhammad's Succession | Hajj | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Ash'arism![]() |
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Muwalladism![]() |
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Maturidism![]() |
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Almohadism![]() |
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Mu'tazilism![]() |
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Isma'ilism![]() |
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Zayidism![]() |
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Nizarism![]() |
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Imamism![]() |
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Hafizi![]() |
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Ibadism![]() |
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Najdatism![]() |
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Azraqism![]() |
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Sufrism![]() |
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Druze![]() |
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Alawism![]() |
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Alevism![]() |
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Ikhtilafism![]() |
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Qarmatianism![]() |
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Quranism![]() |
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Judaism[edit | edit source]
Jewish faiths have the special doctrine Teachings of Moses, which makes them treat faiths with the Jewish Syncretism tenet as hostile instead of evil, and neutralizes opinion penalties with them.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Kuzarism![]() |
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Haymanot![]() |
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Rabbinism![]() |
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Karaism![]() |
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Malabarism![]() |
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Samaritanism![]() |
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Dualism[edit | edit source]
Dualist faiths have a special doctrine "Gnosticism", inheritable by new faiths, which makes them treat faiths with the Gnosticism doctrine or tenet as Righteous, as well as applying all other effects of the "Gnosticism" tenet. In both start dates Manicheanism is the only dualist faith remaining. However, dualist faiths can pop up rarely as heresies of other Abrahamic religions. Mandeaism, Priscillianism, and Cainitism are possible Christian heresies. Manicheanism, Sabianism, and Valentianism are possible Muslim heresies. Sethianism is a possible Jewish heresy.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Potential Parent Religion | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Manicheanism![]() |
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Cainitism![]() |
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Christianity |
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Mandeaism![]() |
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Christianity |
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Priscillianism![]() |
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Christianity |
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Sabianism![]() |
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Islam |
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Sethianism![]() |
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Judaism |
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Valentinianism![]() |
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Islam |
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Miletê Tawûsê Melek[edit | edit source]
All Miletê faiths except Yazidism start as dead in both start dates and are identical in doctrines to each other.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Yazidism![]() |
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Kitêbacilweism![]() |
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Meshefaresism![]() |
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List of eastern faiths[edit | edit source]
Buddhism[edit | edit source]
All Buddhist faiths have no head of faith.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Nangchos![]() |
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Vajrayana![]() |
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Theravada![]() |
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Mahayana![]() |
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Ari![]() |
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Hinduism[edit | edit source]
All Hindu faiths have no head of faith and is only religion to have 7 holy sites while the rest have 5
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Shaivism![]() |
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Vaishnavism![]() |
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Krishnaism![]() |
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Smartism![]() |
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Advaita Vedanta![]() |
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Srikula Shaktism![]() |
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Kalikula Shaktism![]() |
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Jainism[edit | edit source]
All Jain faiths have no head of faith. New Janist faiths based off of Digambara will inherit the Naked Priests doctrine.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Naked Priests | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Digambara![]() |
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Svetambara![]() |
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Yapaniya![]() |
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Zoroastrianism[edit | edit source]
Zoroastrianism can only be selected as a starting religion in 867. While it still exists in 1066, there aren't any landed characters that practice it. It is the only Eastern religion that treats other faiths within the religion as hostile.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Mazdayasna![]() |
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Behafaridism![]() |
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Gayomarthianism![]() |
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Khurmazdism![]() |
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Khurramism![]() |
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Arewordik![]() |
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Mazdakism![]() |
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Taoism[edit | edit source]
All Taoist faiths are not practiced in any county. In 867, Duke Huaishen of Guiyi is one of the few playable characters who practices it. Their number of holy sites also differ.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Quanzhen![]() |
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Shangqing![]() |
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Zhengyi![]() |
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List of pagan faiths[edit | edit source]
Tibetan[edit | edit source]
Tibetan is the only religion to have both organized and unreformed faiths at game start. Since a reformed faith in the same religion already exists, Khyarwé Bönpo cannot be reformed.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Organization | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Gyur Bön![]() |
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Khyarwé Bön![]() |
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Mandé[edit | edit source]
Both Mandé faiths are unreformed.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Siguism![]() |
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Bidaism![]() |
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Hsexje[edit | edit source]
Both Hsexje faiths start unreformed.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Vvluphixje![]() |
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Melie![]() |
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Tanism[edit | edit source]
Both Tani faiths start unreformed.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Donyi-Poloism![]() |
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Sedism![]() |
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Mundhumism[edit | edit source]
Both Mundhum faiths start unreformed.
Faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Holy sites |
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Kiratism![]() |
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Yumaism![]() |
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Single faith religions[edit | edit source]
The following religions start unreformed and have only a single faith. The faith Paganism does not refer to a specific faith but all faiths that are not present ingame but for history purposes (i.e. Celtic and Arabian paganism)
Religion and faith | Tenets | Gender views | Religious attitude | Clerical tradition | Head of faith | Marriage doctrines | Crime doctrines | Clergy doctrines | Exists | Holy sites |
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Hausa Bori ![]() |
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Steppe Tengriism ![]() |
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Finno-Ugric Ukonusko ![]() |
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Slavic Slovianska Pravda ![]() |
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Oromo-Somali Waaqism ![]() |
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Yoruba Orisa ![]() |
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Akan Akom ![]() |
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Baltic Vidilism ![]() |
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Kordofan Kushitism ![]() |
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Senegambian Roog Sene ![]() |
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Norse Ásatrú ![]() |
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Siberian Turumism ![]() |
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Uralic Táltosism ![]() |
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Euskal Erlijioa Era Zaharrak ![]() |
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North-African Achamánism ![]() |
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Greco-Roman Hellenism ![]() |
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Zunbil Zunism ![]() |
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Pagan Paganism ![]() |
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