This is a review of vol. 23 of the „Miscellanea Historico-Archivistica” journal published by the Central Archives of Historical Records. The subject of the review contains a total of 20 articles or monographs, divided into four chapters. The first of these is entitled „Heraldyczne polonika w zbiorach państwa nadbałtyckich” [Polish heraldic memorabilia in the collections of Baltic region states] and is the result of the sixth edition of the “Polish memorabilia in the collections of Baltic region states” series of conferences titled “Coats of arms — houses — scholars. Polish heraldic memorabilia in the collections of Baltic region states”, organised in Warsaw on 28 Oct. 2014 by the Central Archives of Historical Records in Warsaw and the Polish Historical Society The second chapter comprises articles presented during the “Prussian Homage. Its genesis and significance” conference, which took place in Warsaw on 4 December 2015. Chapter three (“Articles and Studies”) includes five research articles on modern Polish history (16th–18th century). The volume also includes a review chapter titled “Sources and materials”, as well as “Reports and announcements”.