Title: Gnieźnieńska księga tysiąclecia
Subjects: Anniversaries, Catholic Church. Province of Gniezno (Poland), Catholic Church. Province of Gniezno (Poland). Synodus Provincialis, Councils and synods, Church history, Catholic Church, Provincial Councils and synods
Places: Gniezno (Poland), Poland, Gniezno
People: Adalbert Saint, Bishop of Prague (ca. 956-997)