Seniorate Province

Fragmentation of Poland in 1138:

  The Seniorate Province, composed of Eastern Greater Poland, Lesser Poland, Western Kuyavia, Łęczyca Land and Sieradz Land, under Władysław II

  Silesian Province of Władysław II

  Masovian Province of Bolesław IV

  Greater Poland Province of Mieszko III

  Sandomierz Province of Henryk, split off from the Seniorate Province

  Łęczyca Land under Salomea of Berg

  Pomerania, originally part of the Seniorate province, split off as a vassal province under the Sobiesławice family

The senioral principle established in the testament stated that at all times the eldest member of the dynasty was to have supreme power over the rest (Dux, the Dukes) and was also to control an indivisible "Seniorate Province". In 1138 Bolesław's III eldest son Władysław II, took up the rule over a vast strip of land running north–south down the middle of Poland, composed of:

• Lesser Poland, except for the eastern Duchy of Sandomierz allocated to Bolesław's III minor son Henry;
• eastern parts of Greater Poland around Gniezno, the Polish ecclesiastical center, and Kalisz;
• western Kuyavia;
• the lands of Łęczyca, held by Bolesław's III widow Salomea of Berg for life.

The High Duke resided at Kraków, Poland's capital since 1038. The Senior's prerogatives also included control over the Duchy of Silesia and his Pomerelian vassals at Gdańsk in eastern Pomerania. The Senior was tasked with defense of borders, the right to have troops in provinces of other Dukes, carrying out the foreign policy, supervision over the clergy (including the right to nominate bishops and archbishops), and minting the currency.

The High duke generally had his own principality (province, dukedom), which he had inherited within his own branch of the Piast dynasty, and left to his personal heirs within his own branch, whereas Kraków followed the seniorate (fell to the oldest of them). Kraków was a substantial addition to the resources of the incumbent, whoever it was, and was intended to put him higher in might than his vassal dukes.

However the seniorate soon collapsed, with the first Senior - Władysław II the Exile - failing his bid to take over other provinces and in 1146 was expelled by his younger half-brothers, an incident which led to long-time Polish particularism.

The duchy neighboured originally each of the four partition duchies of Masovia at Płock, Sandomierz, Silesia at Wrocław and Greater Poland at Poznań. Even after many of those were further partitioned, it bordered on several principalities, and was at least close to all.

  Polish duchies under Casimir II the Just (1163-1194)

Upon the exile of High Duke Władysław II the rule was assumed by Władysław's II eldest brother Bolesław IV the Curly, Duke of Masovia, who died without issue in 1173. He was followed in the Seniorate by the second eldest Mieszko III the Old, while Masovia and the Kuyavian lands passed to Bolesław's IV minor son Leszek.

The senioral principle finally turned out to be a failure as Mieszko's III rule at Kraków was not only challenged by the sons of expelled Władysław II, but also by the youngest son Casimir II the Just, who had not received any share by his late father's testament. Though upon the death of Bolesław IV the Curly he had received the Duchy of Sandomierz, in 1177 he took the occasion of an uprising by Lesser Polish nobles (magnates) and assumed the rule as High Duke from his elder brother Mieszko III. A long-term struggle between the brothers followed, whereby Mieszko III was able to incorporate the northwestern lands of Gniezno and Kalisz into his Duchy of Greater Poland.

The Seniorate remained contested after Kraków was inherited by Casimir's II son Leszek I the White in 1194, still by his uncle Mieszko III (d. 1202), then by his younger brother Konrad of Masovia, by his cousin, Mieszko's III son Władysław III Spindleshanks and also by the second son of Władysław II the Exile, Duke Mieszko IV Tanglefoot of Upper Silesia. In the long-term struggle Leszek I was killed in 1227 and the Pomerelian lands got lost, when Duke Swietopelk II of Gdańsk declared himself independent. In 1232 the Silesian duke Henry I the Bearded finally prevailed, re-uniting the thrones of Wrocław and Kraków under his rule as determined by the will of late Duke Bolesław III Krzywousty in 1138. However, a re-establishment of the Polish kingdom under the rule of the Silesian Piasts failed, when Duke Henry's I son Henry II the Pious was killed during the Mongol invasion at the 1241 Battle of Legnica. After an interregnum he was succeeded by Leszek's I son Bolesław V the Chaste, who upon his death in 1279 appointed Konrad's grandson Leszek II the Black of Kuyavia.

The Silesian Piasts once again reached for the Senioral Province, when Leszek II died without heirs in 1288, and Duke Henry IV Probus of Wrocław became High Duke at Kraków but likewise had no issue upon his death in 1290. The Seniorate was again contested between the dukes Przemysł II of Greater Poland and Władysław I the Elbow-high of Kuyavia. Przemysł II brought the royal Přemyslid dynasty of Bohemia into the Polish affairs, when he allied with King Wenceslaus II, whom he ceded the throne at Kraków. In 1295 however, he switched sides and had himself crowned as King of Poland (the first since the deposition of Bolesław II the Bold in 1079) at Greater Polish Gniezno. As he was killed the next year, Władysław I proclaimed himself his successor, he nevertheless had to deal with the permanent pressure by the claimants of the Bohemian Přemyslid and Luxembourg dynasties, who had begun to vassalize the southwestern Silesian duchies.

In 1320 Władysław I, against the fierce resistance of King John of Bohemia, reached the consent by Pope John XXII to have himself crowned Polish king at Kraków. The Duchy of Kraków was finally incorporated into the Lands of the Polish Crown as Kraków Voivodeship. Władysław's I successor King Casimir III the Great had to buy off the Bohemian claims by renouncing Silesia in the 1335 Treaty of Trentschin.

In this list, titular claims are not noted, not as full rule; only true and real ducal power over Kraków is noted.

In 1138 Bolesław III Krzywousty, Duke of all Poland at Kraków, divided his realm into five duchies, with the Seniorate Province allocated to:

• 1138-46 Władysław II the Exile, also Duke of Silesia, deposed by his younger half-brothers and exiled
• 1146 (possibly already earlier in power in Cracow) - 1173 Bolesław IV the Curly, half-brother, also Duke of Masovia and Duke of Silesia until 1163 (return of Władysław's II sons)
• 1173-77 Mieszko III the Old, brother, Duke of Greater Poland, deposed
• 1177-(90/90-)94 Casimir II the Just, also Duke of Sandomierz since 1173
  • 1190 briefly Mieszko III again
• 1194-99 Leszek I the White, son of Casimir II, Duke of Sandomierz, deposed
• 1199-1202 Mieszko III, again
• 1201 Leszek I of Sandomierz, again, deposed
• 1202 Konrad, brother, Duke of Masovia, deposed
• 1202-06 Władysław III Spindleshanks, son of Mieszko III, Duke of Greater Poland, deposed
  • 1202- Leszek I of Sandomierz, in strife against Wladyslaw III
• 1206-27 Leszek I of Sandomierz, again
  • 1210-11 Mieszko IV Tanglefoot, Duke of Upper Silesia
• 1227-29 Wladyslaw III of Greater Poland, again, deposed
• 1227-28 Konrad of Masovia, again, deposed (strife against Wladyslaw III)
• 1228-38 Henry I the Bearded, Duke of Lower Silesia (strife)
  • 1229-32 Konrad of Masovia, in strife
• 1238-41 Henry II the Pious, Duke of Lower Silesia
• 1241 Bolesław II the Bald, Duke of Lower Silesia, driven away 1241
  • Mongol invasion (Konrad of Masovia was again overlord, though hardly held Cracow)
• 1243-79 Bolesław V the Chaste, Duke of Sandomierz
• 1279-88 Leszek II the Black, Duke of Kuyavia
• 1288-90 Henry IV Probus, Duke of Wrocław (in Lower Silesia)
• 1290-91 Przemysł II, Duke of Greater Poland, crowned king 1295
  • 1291-1305 King Wenceslaus II of Bohemia
  • 1305 King Wenceslaus III of Bohemia, deposed
• 1305- Władysław I the Elbow-high, Duke of Kujavia, crowned king 1320

• Lesser Poland (Małopolska)