Polans (western)

[1] They were one of the main tribes in Central Europe and were closely related to the Vistulans, Masovians, Czechs and Slovaks.

[2] In the 9th century, the Polans united several West Slavic (Lechitic) groups to the north of Great Moravia.

[3] The earliest Polan rulers mentioned by name are the legendary figures of Piast the Wheelwright and Popiel (8th–9th centuries).

[4] The Dagome iudex document refers to Poland during Mieszko's reign as Civitas Schinesghe (The Gniezno State).

The document describes the country as stretching between the Oder and Rus and between Lesser Poland ("Craccoa"/"Alemure") and the Baltic Sea.

West Slavs of the 9th–10th centuries
A fragment of the Gesta Hammaburgensis ecclesiae pontificum (1073) by Adam of Bremen containing the name Polans – Latin : trans Oddaram sunt Polanos , lit. 'across the Oder are the Polans'.