Lost Books from the Collection of the Suffragan of Płock Piotr Aurifaber Lubart (c. 1470–1530)

Thanks to the surviving records compiled before 1939 in the Seminary Library in Płock, we can today reconstruct with a high degree of accuracy the book collection of Piotr Lubart, the Renaissance suffragan of Płock who worked with Bishop Erazm Ciołek and Andrzej Krzycki. The analysis of this already small collection (which has reduced considerably over the centuries) reflects the education he received at Krakow’s Alma Mater under the guidance of Jakub of Gostynin, as well as the interest and need to study the books he acquired during his life and various ecclesiastical functions. The books that he collected during his life are also a significant contribution to completing the biographical profile of a high-ranking clergyman who held the post of suffragan in one of the oldest dioceses in former Poland – in Płock in Mazovia.