As a Teutonic Knight, Siemowit was successively named komturem of Oleśnica Mała near Oława since 1360, Prior of Poland, Bohemia, Moravia, Austria, Styria and Carinthia since 1372 and Governor and Treasurer of the Order in Germany since 1384.
Cieszyn | Cieszyn Silesia | Siemowit IV | Siemowit II of Masovia | Siemowit III | Frederick Casimir of Cieszyn |