underneath the rebuilt spire, and from 1650 the famous Wallenrodt Library, donated by MartinvonWallenrodt, was situated underneath the gable roof. In 1695
The Wallenrodt Library [de] (Wallenrodtsche Bibliothek) of Königsberg Cathedral was established by the 17th century ducal chancellor Martinvon Wallenrodt [de]
Christoph Julius Ernst vonWallenrodt (1670–1727) 1726–1730: Benjamin Friedrich von Reichenbach (1697–1750) 1730–1733: Christoph Martinvon Degenfeld-Schonburg
Ernst von Baer (1817–34), the mathematician Carl Gustav Jacobi (1829–42), the mineralogist Franz Ernst Neumann (1828–76) and the physicist Hermann von Helmholtz