The exact identity of Jaxa of Köpenick, the leader of the Slavic revolt, has been subject of dispute, partly because there might have been several individuals with the unusual name "Jaxa" (or its variants) alive at the time.
This is complicated by the fact that it is also not clear whether Jaxa was a pagan or if he had converted to Christianity.
 While Jaxa led a pagan revolt, some sources claim that he himself was a Christian, having converted through the Polish Bishopric of Lebus.
Likewise the coins issued by a Jacza de Copnic show a ruler holding a cross, however it is not clear that Jacza and Jaxa were the same person, although undoubtedly both were associated with Köpenick.
Other sources on the other hand refer to Jaxa as a pagan or a heathen.

The Polish numismatist Marian Gumowski identified Jaxa with a Polish noble from Lesser Poland, Jaksa of Miechów, who in 1145 married a daughter of Piotr Włostowic, the castellan of Wrocław and palatyn to Polish Duke Bolesław Wrymouth.
According to this version Jaxa/Jaksa did not become prince of Stodorans until 1154.
If the identification is correct then Jaxa's death can be placed at around 1176.
Marek Cetwiński also identified Jaxa, prince of Kopenick, with Jaksa of Miechów.

According to this thesis Jaksa's coins could have been fabricated at silver mines of Rozbark and Bytom.

This thesis has been disputed by other scholars, for example the Polish historian Gerard Labuda, who argued that the two were distinct persons.
In this Labuda followed the Polish Renaissance chronicler Jan Długosz who had posited that there were in fact three different Jaxas alive during this period.
According to British historian Norman Davies Jaxa was most likely a Sorb or Lutician.
The exact identity of Jaxa of Köpenick, the leader of the Slavic revolt, has been subject of dispute, partly because there might have been several individuals with the unusual name "Jaxa" (or its variants) alive at the time. This is complicated by the fact that it is also not clear whether Jaxa was a pagan or if he had converted to Christianity.  While Jaxa led a pagan revolt, some sources claim that he himself was a Christian, having converted through the Polish Bishopric of Lebus. Likewise the coins issued by a Jacza de Copnic show a ruler holding a cross, however it is not clear that Jacza and Jaxa were the same person, although undoubtedly both were associated with Köpenick. Other sources on the other hand refer to Jaxa as a pagan or a heathen.
The Polish numismatist Marian Gumowski identified Jaxa with a Polish noble from Lesser Poland, Jaksa of Miechów, who in 1145 married a daughter of Piotr Włostowic, the castellan of Wrocław and palatyn to Polish Duke Bolesław Wrymouth. According to this version Jaxa/Jaksa did not become prince of Stodorans until 1154. If the identification is correct then Jaxa's death can be placed at around 1176. Marek Cetwiński also identified Jaxa, prince of Kopenick, with Jaksa of Miechów.
According to this thesis Jaksa's coins could have been fabricated at silver mines of Rozbark and Bytom.
This thesis has been disputed by other scholars, for example the Polish historian Gerard Labuda, who argued that the two were distinct persons. In this Labuda followed the Polish Renaissance chronicler Jan Długosz who had posited that there were in fact three different Jaxas alive during this period. According to British historian Norman Davies Jaxa was most likely a Sorb or Lutician.
Jaxa of Köpenick