Duchy of Bohemia
The Duchy of Bohemia, also later referred to in English as the Czech Duchy, () was a monarchy and a principality of the Holy Roman Empire in Central Europe during the Early and High Middle Ages. It was formed around 870 by Czechs as part of the Great Moravian realm. Bohemia separated from disintegrating Moravia after Duke Spytihněv swore fidelity to the East Frankish king Arnulf in 895.

While the Bohemian dukes of the Přemyslid dynasty, at first ruling at Prague Castle and Levý Hradec, brought further estates under their control, the Christianization initiated by Saints Cyril and Methodius was continued by the Frankish bishops of Regensburg and Passau. In 973, the Diocese of Prague was founded through the joint efforts of Duke Boleslaus II and Emperor Otto I. Late Duke Wenceslaus I of Bohemia, killed by his younger brother Boleslaus in 935, became the land's patron saint.

While the lands were occupied by the Polish king Bolesław I and internal struggles shook the Přemyslid dynasty, Duke Vladivoj received Bohemia as a fief from the hands of the East Frankish king Henry II in 1002 and the duchy became an Imperial State of the Holy Roman Empire. The Duchy of Bohemia was raised to a hereditary Kingdom of Bohemia, when Duke Ottokar I ensured his elevation by the German king Philip of Swabia in 1198. The Přemyslids remained in power throughout the High Middle Ages, until the extinction of the male line with the death of King Wenceslaus III in 1306.
Q7269
monarchy
Concept
Q1411354
principality of the Holy Roman Empire
PER
Q27509
Central Europe
LOC
Q202763
Early
TIME
Q212685
High Middle Ages
TIME
Q170217
Czechs
Concept
Q193152
Great Moravia
LOC
Q39193
Bohemia
LOC
Q508602
Spytihněv
PER
Q153080
East Frankish
LOC
Q154936
Arnulf
PER
Q287652
Přemyslid dynasty
LOC
Q193369
Prague Castle
LOC
Q1430970
Levý Hradec
LOC
Q16826748
Christianization
TIME
Q239925
Saints Cyril and Methodius
MEDIA
Q258606
Regensburg
LOC
Q262415
Passau
LOC
Q46082
Diocese of Prague
LOC
Q456174
Boleslaus II
PER
Q43915
Otto I
PER
Q196527
Wenceslaus I of Bohemia
PER
Q360112
Boleslaus
PER
Q353227
Polish
Concept
Q53436
Bolesław I
PER
Q387912
Vladivoj
PER
Q188063
fief
Concept
Q103556
Henry II
PER
Q1507115
Imperial State
LOC
Q12548
Holy Roman Empire
Concept
Q42585
Kingdom of Bohemia
LOC
Q312938
Ottokar I
PER
Q121130
Philip of Swabia
PER
Q54040
Wenceslaus III
PER
Q2162698
Duchy of Bohemia
LOC
Q2162698
Duchy of Bohemia
LOC
1002-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1002
DATE
1198-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1198
DATE
1306-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1306
DATE
basic form of government
replaces
head of state
sibling
sibling
country