Samborides and Griffins
Pomerelia, initially under Polish control, was ruled by the Samborides dynasty from 1227 until 1294. The duchy was split temporarily into districts of Gdańsk (Danzig), Białogard, Świecie (Schwetz) and Lubieszewo–Tczew .
In Pomerania proper, direct Polish rule ended with Boleslaw III's death in 1138. The Słupsk and Sławno areas (Lands of Schlawe and Stolp were ruled by Ratibor I and his descendants (Ratiboriden branch of the Griffin House of Pomerania) until the Danish occupation and extinction of the Ratiboride branch in 1227.
The areas stretching from Kołobrzeg to Szczecin were ruled by Ratibor's brother Wartislaw I and his descendants (House of Pomerania, also called Griffins, of which he was the first ascertained ancestor) until the 1630s.
Read more about this topic: Pomerania During The High Middle Ages, Emergence of Pomeranian Dynasties