The evaluation of a resercher`s life work often does not include, or underestimates, articles written for the Polish Biographical Dictionary. To compensate for this gap, I wish to introduce a short outline of the issues discussed by Józef Andrzej Gierowski in his biographical work, supplemented by a list of the 52 biographies he was aurhor author of. This article`s aim is to highlighting his contributions to the research of the history of the local and central elites of the Polish‑Lithuanian Commonwealth, both by examples and the by listing.