Prof. Lech Szczucki (1933 – 19 November 2019) [1] was a Polish historian of philosophy and culture, particularly noted since the 1960s for his work on the Polish Brethren. He was a professor emeritus of the Polish Academy of Sciences (PAN), Institute of Philosophy and Sociology. A regular member of the Warsaw Scientific Society, a member of the Society for the Promotion and Propagation of Sciences. A former editor of "Archivum", and now on the Program Committee.[2] Prof. Szczucki was awarded the Prize of the Foundation for Polish Science for explaining the cultural ties between Central and Western Europe in a monumental edition of the correspondence of Andrzej Dudycz, the 16th-century thinker, religious reformer and diplomat.[3]