Wszebor

Piotr Wszeborycz, also known as Wszebor, was a Polish voivode, lord of Ciechanów, and the commander of Masovia. He lived in the 11th and 12th centuries.

Reign Based on information from the Kadłubek Chronicle, it is assumed that Wszebor held the office of voivode twice—once in the final phase of Bolesław Krzywousty's government (1125–1138), and the second time during the rule of Bolesław Kędzierzawy (after 1146). In 1089, as he was an experienced knight, Wszebor ruled Ciechanów Castle.

Bolesław II the Bold's Expedition to Kiev Wszebor participated in Bolesław II the Bold's expedition to Kiev, during which he led the Polish army.

Attack on Wszebor's castle Wszebor's daughter Hanna was considered exceptionally beautiful and was betrothed to Prince Mieczysław, the son of Bolesław the Bold, as a child.

Wszebor's attack After Salomea of Berg's death (27 July 1144), the juniors Bolesław II the Bold and Mieszko III of Poland wanted to take over the widow's estatecontrary to their father's will, perhaps as a salary for the younger Henry. Władysław II appealed to Vsevolod II Olegovich for help. However, without waiting for Vsevolod II's soldiers to arrive, he sent his troops into battle.

Before the clash with his brothers took place, he was unexpectedly attacked by the Masovian Voivode, Wszebor. Władysław's inevitable defeat was prevented by reinforcements from Vsevolod, which arrived on time. A sort of accomplice (and perhaps the instigator) of this dangerous situation was Piotr Włostowic (Wszebor's brother), who, "guarding" the observance of Krzywousty's will, avoided unequivocally accepting the principal's side, and speaking in the language of reality: by giving his brothers a free hand, he took care of his own skin — after the removal of the juniors, because the senior prince would probably also want to get rid of the all-powerful palatine.

To support his assumption, he referred to the message of Carmen Mauri (preserved in both text versions, i.e., in the Polish-Silesian Chronicle and in the Chronicle about Komes Piotr), claiming that it clearly indicates that at the moment of death, Bolesław III Wrymouth was in the hands of Piotr Włostowic. He derives this affiliation only from indirect data, emphasizing that there is no expressis verbis of Wszebor's relationship with Piotr. He rejects the emendation of the name Ceswborius to "Wseborius", accepted by some researchers, based on which Wszebor is recognized in the literature on the subject as Peter's cognatus.

Death It is unknown when Wszebor died, although it was a few months after his daughter Hanna died.