It was divided in to small realms reigned by Silesian limbs of Piast dukes after the testament involving Bolesław III Wrymouth in 1138. Wrocław was mentioned as one of about three centers of the particular Kingdom of Especially, together with Kraków in addition to Sandomierz, in the early-12th-century Gesta principum Polonorum chronicle. In 1241, it […]