Sobieslaw
Sobiesław, Soběslav or Sebeslav (Proto-Slavic: *Sobęslavь, Polish: Sobiesław, Czech: Soběslav, Slovak: Sebeslav, Old Church Slavonic: Собѧславь) is a very old Slavic given name, mostly common among the West Slavs. Because of folk etymology, it is popularly supposed to derive from "sobie" ("usurp, for me, myself") and "sław" ("glory, prestige"); however, it is actually derived from a Proto-Indo-European name meaning "wise-famous", cognate with Sophocles (roots *sap and *ḱléwos). The feminine form is Sobiesława/Soběslava/Собѧслава.