page_title: Leszek the White
section_title: Intervention in Kievan Rus'
hierarchical_section_title: Leszek the White / Intervention in Kievan Rus'
caption_attribution_description: Leszek Biały
context_page_description: Leszek the White was Prince of Sandomierz and High Duke of Poland during 1194–1198, 1199, 1206–1210, and 1211–1227. During the early stages of his reign his uncle, Duke Mieszko III the Old, and cousin Władysław III Spindleshanks, from the Greater Polish branch of the royal Piast dynasty, contested Leszek's right to be High Duke.
  Leszek was the third or fourth, but eldest surviving son of Casimir II the Just and his wife Helen of Znojmo.
context_section_description: In the early years of his rule, Leszek's policy focused mainly in Kievan Rus'. In 1199 he helped Prince Roman of Vladimir-in-Volhynia with troops to reconquer the Principality of Halych, probably in gratitude for Roman's assistance against Mieszko III at Mozgawa in 1195. This alliance ended unexpectedly in 1205, however, when Roman decided to support Władysław III Spindleshanks' effort to recover the Seniorate Province (which supports the theory that Władysław III was expelled in 1202). Roman then invaded the domains of Leszek and Konrad for unknown reasons (although historians believe that this was due to the intrigues of Władysław III), venturing deep into their territory. Both forces clashed in the Battle of Zawichost (14 October 1205), where Roman was defeated and killed.
  Leszek and Konrad then became involved in the conflict associated with the succession of Roman's domains, which was further complicated by the intervention of King Andrew II of Hungary, who supported the rights of Roman's widow and children. Leszek and his brother initially led a coalition of Rurikid princes who wanted to remove Roman's children from Vladimir-in-Volhynia and Halych. However, after some time, and in order to avoid a war with Hungary, they decided to sign a treaty. In 1206 Leszek met with Andrew II in Volhynia, and afterwards the influence of the Hungarian rulers over Vladimir-in-Volhynia and Halych was exclusive.
  Despite the agreement with the Hungarian King, the conflict continued. Shortly after, Roman's widow and her younger son Vasilko, displeased with the Hungarian rule, decided to escape to Poland, where they found refuge at Leszek's court; her eldest, Daniel had already been sent to the court of Andrew II. During their exile in Poland, they received the land of Belz.
  A further confirmation of an active policy in Kievan Rus' were the marriages of Leszek and Konrad with Rurikid princesses. Leszek first married a daughter (name unknown) of Ingvar Yaroslavich, Prince of Lutsk, and then Grzymisława, perhaps a daughter of Yaroslav III Vladimirovich, Prince of Novgorod. Meanwhile, Konrad married Agafia, daughter of Svyatoslav III Igorevich, Prince of Peremyshl.
  In 1210 Andrew II decided to replace the reigning prince of Vladimir-in-Volhynia with Roman's eldest son Daniel. However, not wanting to lose his political influence, he decided to send his troops there. The expected Polish-Hungarian confrontation did not occur in the end, because Leszek was forced to have his army return after Mieszko Tanglefoot captured Kraków.
  Once the situation in the Seniorate Province was pacified, Leszek returned to Vladimir-in-Volhynia and Halych in 1212. As a result of his military actions, he took several border fortresses. However, in 1213 he failed to prevent the capture of Halych by the Hungarian boyar Władysław. Although a year later he was defeated at the Bobrka river, the danger of the zone forced the Hungarian troops to retreat. In the same year, wanting to break the difficult relations with Hungary, Leszek, under the pressure of the Kraków aristocracy gathered around the voivode Pakosław, decided to conclude a peace treaty at Spiš. According to this treaty the government of the Halych-Volhynia was given to Andrew II's second son Coloman, who was to marry Leszek's oldest daughter Salomea. This treaty also gave Leszek territorial acquisitions in Kievan Rus' (the districts of Przemyśl and Lubaczów).
  Unfortunately, this alliance with Hungary did not last, because before the end of the year Leszek decided to support the restoration of Daniel Romanovich in Halych when it was clear that the local nobility did not accept the rule of Prince Coloman. The ambiguous policy of the Duke of Kraków cost him in 1215 when the Hungarians, impatient with the lack of help in securing the rule of Coloman, broke the alliance. Once the situation in Kievan Rus' seemed to be calm, the Hungarians sent an army against Leszek, using his support of Daniel as the rationale. During this campaign, Leszek lost the lands of Przemyśl and Lubaczów.
  After this defeat, Leszek wante
caption: Leszek I the White, by Aleksander Lesser.
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