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  1. Guide Annex
  2. Crusader Kings 3
  3. Realms
  4. Papacy

The Papacy

Updated theocracy

The Pope's title in Rome on every bookmark: Nicholas I in 867, Alexander II in 1066, and Alexander III in 1178. By God Alone, out 30 Sep 2026, makes the seat playable.

Overview

The Christian Church situation window in By God Alone, in the Saeculum Obscurum chapter
Official By God Alone Steam store image: the Christian Church situation in a Saeculum Obscurum crisis chapter.

The Papacy is the Pope's title in Rome. In the game files it is a kingdom-tier title, k_papal_state, held under a theocratic government. Its holder is the Christian head of faith. Nicholas I holds it on 1 January 867. Alexander II holds it on 15 September 1066. Alexander III holds it on 1 October 1178.

Until By God Alone the Pope was a ruler you dealt with, not one you played. The expansion came out on 30 Sep 2026. Its store page and release announcement name playable theocracies, led by an archbishop or by the Pope himself, and say the Papacy has its own resources of power and wealth. The Pope appoints cardinals across Christendom, and the College of Cardinals elects the next Pope. Patch 1.20.1.2 seats 55 cardinal titles in Rome and caps a faith at 70 cardinals.

The Pope who holds the title at the bookmark starts with the Papal Tiara when Royal Court is active. Excommunication is the Pope's sharpest tool against a Christian ruler, and patch 1.20.0 reworked it. An excommunicated character cannot be made a cardinal.

Starts

867

Nicholas I holds the Papacy on 1 January 867. The history file renames him Nicolaus at his election in 858 and ends his reign on 13 November 867, when it passes the title to Hadrian II. Nicholas spent the 860s opposing Lothair II's attempt to set aside Queen Teutberga. In 866 he answered the questions Boris of Bulgaria sent to Rome.

With By God Alone the 867 church is still one church. The store page puts the Great Schism between Western Catholicism and Eastern Orthodoxy inside this start as something that can happen, not as a fixed split. The Fathers of the Faithful bookmark seats Boris, Rostislav of Great Moravia, and three prince-archbishops.

Lothaire II · Lotharingia · 867
SeatDetail
Start867
BookmarkThe Carolingians
TitleLotharingia
Realm size50 counties
StatusIndependent
DifficultyMedium, the bookmark rating in patch 1.20.1.2
CultureFrench
FaithChalcedonianism
DynastyKarling
Age31
Boris of Bulgaria · Bulgaria · 867
SeatDetail
Start867
BookmarkFathers of the Faithful
TitleBulgaria
Realm size68 counties
StatusIndependent
DifficultyMedium, the bookmark rating in patch 1.20.1.2
CultureBulgarian
FaithChalcedonianism
Age42

1066

Alexander II, born Anselmo, holds the Papacy. The file runs his reign from 1061 to 21 April 1073. The archdeacon Hildebrand followed him as Gregory VII. Robert Guiscard, the independent duke of Apulia on this bookmark, had been invested by Pope Nicholas II at Melfi in 1059.

Henry IV of the Holy Roman Empire is still young. Canossa, the winter meeting of 1077 at Matilda of Tuscany's castle, is eleven years ahead. The quarrel between Henry and Gregory over church appointments is the Investiture Controversy.

Henry IV · Holy Roman Empire · 1066
SeatDetail
Start1066
TitleHoly Roman Empire
Realm size232 counties
StatusIndependent
CultureFranconian
FaithCatholicism
DynastySalian
Matilda of Tuscany · Tuscany · 1066
SeatDetail
Start1066
BookmarkRags to Riches
TitleTuscany
Realm size15 counties
StatusVassal of the Holy Roman Empire
DifficultyMedium, the bookmark rating in patch 1.20.1.2
CultureItalian
FaithCatholicism
GovernmentFeudal
DynastyLucca, house Canossa
Age20
Robert Guiscard · Apulia · 1066
SeatDetail
Start1066
BookmarkRags to Riches
TitleApulia
Realm size10 counties
StatusIndependent
DifficultyMedium, the bookmark rating in patch 1.20.1.2
CultureNorman
FaithCatholicism
DynastyHauteville
Age51

1178

Alexander III, born Orlando Bandinelli, holds the Papacy. He was elected in 1159 and spent most of the reign against antipopes backed by Frederick Barbarossa. The Lombard League beat the emperor at Legnano in 1176. At Venice in 1177 Barbarossa recognized Alexander. The Third Lateran Council meets in 1179. The file ends the reign on 30 August 1181.

Frederick Barbarossa · Holy Roman Empire · 1178
SeatDetail
Start1178
TitleHoly Roman Empire
Realm size197 counties
StatusIndependent
FaithCatholicism
DynastyHohenstaufen

Later impact

Fresco of Frederick Barbarossa kneeling before Pope Alexander III
Spinello Aretino's fresco in the Palazzo Pubblico, Siena: Barbarossa submits to Alexander III, the Pope on the 1178 bookmark. Spinello Aretino, Palazzo Pubblico, Siena. Public domain (artist died 1410). Wikimedia Commons, File:B alexander III2.jpg.

Nicholas I's claims over bishops and kings were the high point of the ninth-century papacy. The century after him was a low point. The By God Alone Christian Church situation calls one of its crisis chapters Saeculum Obscurum, the name later writers gave to the tenth-century papacy.

Alexander II's reign leads into the Gregorian reform and the fight with Henry IV. Silk & Silver, due 17 Nov 2026, adds a Guelphs and Ghibellines situation. Its first phase, Papal Resurgence, is the 1066 start, and Dictatus Papae comes around 1075. Guelphs back the Pope and the Italian cities. Ghibellines back the Holy Roman Empire.

Alexander III's peace with Barbarossa at Venice did not end the contest. Innocent III, elected on 8 January 1198, is the strongest pope of the next generation. The Silk & Silver bookmark for 1178, Guelphs & Ghibellines, opens on northern Italy after the Treaty of Venice.