The collections of the Kórnik Library of the Polish Academy of Sciences include a set of printed articles by Jan Seklucjan with a handwritten dedication to Albrecht Frederick, Duke of Prussia (†1618). Their binding is decorated with plaquettes with portraits of Albrecht von Brandenburg-Ansbach, Duke of Prussia (†1568) and his first wife Dorothea (†1547). The article analyses both compositions, providing the following conclusions: they were made in the Konigsberg circles of the so-called Formschneider between...

This article is devoted to a diplomatic (formal) analysis of 13 documents, including 12 originals issued by Russian tsars between 1576 and 1707, which are kept at the Kórnik Library. Among them, there are two original letters by Tsar Michael of Russia dating to 1634 and 1645 and four documents by Tsar Alexis of Russia from 1645 and 1668-1669. The collection also includes Peter the Great’s mandate of 1707 given to Russian negotiators for talks...