EN
The article presents six known types of the seal of the Gniezno chapter with images of St. Adalbert. Some opinions on the particular types of seals known from the literature are discussed and refuted. Four types are the great seals (types I-IV) and the remaining two are the little seals (types V-VI). Type I and type II were often presented in various publications. Type III, only mentioned briefly in the literature, was wrongly dated to the 14th century. The recently published type IV was wrongly dated to the turn of the 15th and 16th centuries (the times of the archibishop of Gniezno, cardinal Fryderyk Jagiellonczyk). The article describes and reproduces the seal matrix of type IV preserved in Gniezno and two unpublished types of little seals (types V-VI). The great seals present the saint sitting (types I-IV), while the little seals show the saint in the standing position (types V-VI).