Herzogtum Ratibor
His parents were Duke Nicholas II of Opava and his third wife, Jutta (died: ), daughter of Duke Boleslaw II of Opole-Falkenberg. Nicholas died shortly after Přemek was born, and so Přemek stood under the regency and guardianship of his oldest half-brother John, who was the sole heir of the Duchy of Racibórz.