Duchy of Silesia
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Duchy of Silesia
Duchy of Silesia

Ksi?stwo ?l?skie (pl)
Herzogtum Schlesien (de)
Slezské kní?ectví (cs)
1138-1335
Silesia 1172-77: Fragmentation begins with splitting off Opole (green) and Racibórz (yellow)
Silesia 1172-77: Fragmentation begins with splitting off
Opole (green) and Racibórz (yellow)
StatusProvince of Poland
CapitalWroc?aw
Religion
Roman Catholic
GovernmentFeudal monarchy
Historical eraHigh Middle Ages
1138
o Duke W?adys?aw II
exiled
1146
o Split off Racibórz
1172
o (Finally) split off
Opole
1202
o Split off Legnica
1248
o Incorporated by
Bohemia
1335
1348

The Duchy of Silesia (Polish: Ksi?stwo ?l?skie, German: Herzogtum Schlesien) with its capital at Wroc?aw was a medieval duchy located in the historic Silesian region of Poland. Soon after it was formed under the Piast dynasty in 1138, it fragmented into various Duchies of Silesia. In 1327 the remaining Duchy of Wroc?aw as well as most other duchies ruled by the Silesian Piasts passed to the Kingdom of Bohemia as Duchies of Silesia. The acquisition was completed, when King Casimir III the Great of Poland renounced his rights to Silesia in the 1335 Treaty of Trentschin.

Geography

During the time of its establishment, the Silesian lands covered the basin of the upper and middle Oder river. In the south the Sudetes mountain range up to the Moravian Gate formed the border with the lands of Bohemia - including K?odzko Land - and Moravia. After a more than century-long struggle, the boundary had just been determined by an 1137 agreement with the Bohemian duke Sob?slav I. In the west Lower Silesia bordered on the German March of Lusatia (later Lower Lusatia) and the former Milceni lands around Bautzen (later Upper Lusatia) with the boundary running along the Bóbr and Kwisa rivers. Silesia was limited by the Polish provinces of Greater Poland in the north and the Seniorate Province of Lesser Poland in the east, separated by the Przemsza and Bia?a rivers.

The boundaries varied slightly in the following decades: at least when the duchy was re-established for the sons of W?adys?aw II the Exile in 1163 (see below), it also comprised Lubusz Land northwest of Krosno, which had been the western outpost of Greater Poland and passed to the margraves of Brandenburg in 1248. In 1177 the Polish High Duke Casimir II the Just attached the former Lesser Polish castellanies of Bytom, O?wi?cim, Zator, Siewierz und Pszczyna to Upper Silesia in favour of Duke Mieszko IV Tanglefoot. After Silesia as a whole had become a Bohemian fief according to the 1335 Treaty of Trentschin, these lordships - except for the state countries of Bytom and Pszczyna - returned to the Polish Crown.

History

Fragmentation of Poland in 1138:
  Duchy of Silesia under W?adys?aw II

As the Silesian Province (Polish: dzielnica ?l?ska), the duchy was one of five main provinces established in medieval Poland according to the Testament of Boles?aw III Krzywousty. By the terms of the will from 1138-1146 it was controlled by the Senior Duke of Poland or High duke, Boles?aw's first-born son W?adys?aw II the Exile, who also held the Duchy of Kraków.

The testament however failed to prevent a violent inheritance conflict between W?adys?aw and his younger half-brothers, who allied against him. After his failed bid to take control of the entire Kingdom in 1146, he lost his status as the senior duke, was excommunicated by Archbishop Jakub ze ?nina of Gniezno and fled to the Holy Roman Empire. The duchy was then under control of his half-brother High Duke Boles?aw IV the Curly.

With support from Emperor Frederick I Barbarossa, who had campaigned in Greater Poland in 1157 and forced Boles?aw IV to cede Silesia, W?adys?aw's sons were able to return to the duchy in 1163. As long as they were under pressure by High Duke Boles?aw IV, they ruled jointly at Wroc?aw, until tensions between them erupted into an open conflict in 1172. As a result, the brothers divided the duchy among themselves; the first partition of many which led to the creation of numerous Duchies of Silesia in the following centuries:

  • W?adys?aw's eldest son, Boles?aw I the Tall, received Lower Silesia with Wroc?aw as his residence; therefore his estates are sometimes already referred to as Duchy of Wroc?aw.
  • The second son, Mieszko I Tanglefoot, received a far smaller part in Upper Silesia and took his residence at Racibórz; this resulted in the creation of the Duchy of Racibórz. In view of his disadvantage, the Polish High Duke Casimir II the Just ceded him further Lesser Polish territories in 1177 (see above).

After a revolt by Boles?aw's eldest son, Jaros?aw, who feared for his heritage, his father ceded him a strip of land around Opole, for the first time creating the Duchy of Opole. In turn Jaros?aw had to prepare for an ecclesiastical career and remain celibate. Likewise Boles?aw's and Mieszko's youngest brother, Konrad Spindleshanks, when he came of age claimed his rights and about 1177 received the Lower Silesian lands around G?ogów; leading to the first creation of the Duchy of G?ogów. However, Boles?aw I outlived both his youngest brother and his son, and both territories fell back to him in 1190 and 1201 resp.

Boles?aw I died in the same year and was succeeded by his only surviving son Henry I the Bearded, who soon entered into conflict with his Piast relatives as well as with his German neighbours. In 1202 he had to face the invasion of his uncle Mieszko I, who, still dissatisfied with the 1172 partition, annexed the Opole territory of late Jaros?aw. The Duchy of Opole remained with the estates of Mieszko's descendants, whereby the secession of Upper Silesia was conclusive. In 1206 Henry I came to an agreement with the Polish High Duke W?adys?aw III Spindleshanks to swap Lubusz Land for the Greater Polish Kalisz region. The plan however was foiled, when W?adys?aw III lost the seniorate and furthermore Lubusz was occupied by the troops of the Wettin margrave Conrad II of Lusatia. Duke Henry had to struggle for his northwestern outpost, which he regained upon the margrave's death in 1210. He had to defend Lubusz once more against the campaigns of Landgrave Louis IV of Thuringia from 1221. Upon the death of his cousin Duke Casimir I of Opole, son of Mieszko I Tanglefoot, in 1230, he acted as guardian of his minor nephews, thereby once again ruling over whole Silesia. In 1232 he became High Duke of Poland, and as he was able to secure the succession of his son Henry II the Pious upon his death in 1238, it seemed that the Polish fragmentation could be overcome and the will of Boles?aw III Krzywousty would finally be fulfilled.

Silesia in 1248/49:
  Duchy of Legnica under Boles?aw II
  Duchy of Wroc?aw under Henry III
  Duchy of Opole under W?adys?aw

Henry II in 1239 had to resign the regency of Upper Silesia in favour of his cousin Mieszko II the Fat. He anew defended Lubusz, this time against the forces of the Ascanian margraves of Brandenburg, and in 1241 granted it to his second son Mieszko. The hopes for a re-unification of the Polish lands under the Silesian Piasts ended with the Mongol invasion of Poland and Henry's death at the 1241 Battle of Legnica. His eldest son Boles?aw II the Bald could not prevail as High Duke against Boles?aw V the Chaste of Lesser Poland and, after he regained Lubusz upon the death of his brother Mieszko in 1242, finally had to divide his Silesian heritage with his younger brothers in 1248:

  • Boles?aw II himself took his residence in the west at Legnica, thereby establishing the Duchy of Legnica together with his youngest brother Konrad. Soon after he sold Lubusz to the Brandenburg margraves, who finally gained a foothold beyond the Oder to establish the Neumark region. In 1251 Konrad, actually elected Bishop of Passau, forced Boles?aw to cede the Duchy of G?ogów to him.
  • The residence of Wroc?aw fell to his younger brothers Henry III the White and W?adys?aw, thereby establishing the Duchy of Wroc?aw proper.

The subdivision of the Silesian duchies increased over the following generations and accompanied the fragmentation of Poland. Henry's III son Henry IV Probus upon the death of his uncle W?adys?aw in 1270 ruled at Wroc?aw and in 1288 even became High Duke of Poland, until the male line became extinct with his death in 1290. He was succeeded by his cousin Duke Henry V the Fat, son of Henry's III brother Boles?aw II, who once again re-united the duchies of Wroc?aw and Legnica under his personal rule. Nevertheless, upon his death in 1296, his heritage was again partitioned among his sons. The second, Duke Henry VI the Good, in order to ward off claims raised by his elder brother Duke Boles?aw III the Generous of Legnica, in 1327 signed an inheritance treaty with King John of Bohemia, like most of the Silesian duchies had been vassalized by the Kingdom of Bohemia in the early 14th century. As the Polish king Casimir III in the 1335 Treaty of Trentschin had renounced Silesia, Henry's VI duchy passed without opposition to the Bohemian kingdom when he died without male heirs three months later.

Silesia was incorporated into the Lands of the Bohemian Crown, after King Casimir III had acknowledged the acquisition by the 1348 Treaty of Namslau with King Charles IV -- except for the Upper Silesian duchies of O?wi?cim and Zator, which in the 16th century were integrated in the Polish Kraków Voivodeship, as well as the Duchy of Siewierz, that was purchased by the Archbishop of Kraków in 1443.

Dukes

As Henry VI left no male heirs, his lands were inherited by King John of Bohemia.

Maps

The following maps illustrate continuing fragemtarization of the Duchy of Silesia, and shifting borders of the individual smaller Duchies.

Aftermath

After the inheritance of Bohemia by the House of Habsburg in 1526, the Silesian duchies gradually passed under control of the Austrian Habsburg Monarchy until King Frederick II of Prussia invaded Silesia in 1740 and annexed most of it during the First Silesian War. The bulk of the duchy, enlarged by the County of Kladsko and Upper Lusatian territories annexed from Saxony, was subsequently reorganized as part of the Prussian Province of Silesia, while the duchies remaining under Austrian control were reconstituted as the Duchy of Upper and Lower Silesia in 1742. The duchies which had remained in Poland were subsequently annexed by the Kingdom of Prussia (New Silesia) and the Habsburg Monarchy (Galicia) during the 18th century Partitions of Poland. The Duchy of Upper and Lower Silesia lasted as a crown land of Cisleithanian Austria until 1918, whereupon it was divided between the Second Polish Republic (Autonomous Silesian Voivodeship) and Czechoslovakia (Czech Silesia) after the Polish-Czechoslovak War of 1919.

References

  • Hugo Weczerka: Handbuch der historischen Stätten: Schlesien. Stuttgart, 1977, ISBN 3-520-31601-3, S. XXXIV-XXXVII sowie Stammtafel auf p. 590.
  • Rudolf ?á?ek: D?jiny Slezska v datech. Praha 2004, ISBN 80-7277-172-8, S. 444.
  • Ulrich Schmilewski: Oppeln, Herzöge v. In: Neue Deutsche Biographie (NDB). Band 19, Duncker & Humblot, Berlín 1999, ISBN 3-428-00200-8, p. 558 f.
  • Historia Narodu ?l?skiego. Prawdziwe dzieje ziem ?l?skich od ?redniowiecza do progu trzeciego tysi?clecia (History of Silesian Nation. True history of Silesian lands from the Middle Ages to the threshold of the third Millennium), Zabrze 2003 ISBN 83-919589-0-6.


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