Duchy of Pomerania-Schlawe Księstwo sławieńskie (Polish) Herzogtum Pommern-Schlawe (German) Ducatus Slaunensis (Latin)
1190–1226/1238
Coat of arms
Status	Fiefdom of Denmark
Capital	Sławno
Religion	Roman Catholic
Government	Feudal duchy
Duke
• 1190–1223 (first)	Bogislaw III
• 1223–1236/1238 (last)	Ratibor II
Historical era	High Middle Ages
• Separation from Pomerania-Stettin	1190
• Incorporation into the Duchy of Gdańsk	1236/1238
Preceded by Succeeded by Pomerania-Stettin Duchy of Gdańsk
Today part of	Poland

The Duchy of Pomerania-Schlawe,^[a] also known as the Duchy of Sławno,^[b] was a feudal duchy with its capital in Sławno, located in Pomerania (in modern northwest Poland). It was formed in 1190, when it separated from the Duchy of Szczecin. In 1238 it was conquered and incorporated into the Duchy of Gdańsk.

History

The duchy was formed in 1190 when it separated from Duchy of Szczecin. It was a feudal duchy under the sovereignty of Denmark. The state was located in the Słupsk and Sławno Land in Pomerania and its capital was Sławno.^[1] Bogislaw III became the ruler of the country.^[2] His existence remain contested, instead being proposed by some historians to be Bogusław I or Bogislaw II.^[3] After his death, he was succsided by Ratibor II, whose existence also remains contested. Instead, he is sometimes proposed to be Ratibor of Białogarda^[4] or Racibor Bogusławowic.^[5] Between 1236 and 1238, the duchy was conquered and incorporated into the Duchy of Gdańsk.^[6][7][8]

List of rulers

• Bogislaw III (1190–1223)
  • Note: theorised to be Bogusław I or Bogislaw II
• Ratibor II (1223–1226/1238)
  • Note: theorised to be Ratibor of Białogarda or Racibor Bogusławowic