The theme of the publication refers to the author’s memories associated with Professor Andrzej Nadolski for his investigation into the Battle of Tannenberg (Grunwald, 1410). With reference to his personal memories and surviving correspondence, the author wishes to give a picture of the inspiring relationship with the famous arms specialist, archaeologist and historian. This began towards the end of the 1970’s and lasted until the death of Nadolski in 1993. The connecting element of this friendly and scientific relationship was the problematic nature of the Battle of Tannenberg from which a strong fascination emerged resulting in the publication of several books and essays by Nadolski and the author.