Jarosław is the initiator of the reconstruction and revival of Castle Gniew, for over 25 years one of the leading centers in Poland to popularize history, tradition and promote patriotism. The creator and participant of many historical reconstruction groups, including the Hussar banner of the Marshal of the Pomeranian Voivodeship, the Yellow Infantry Regiment, and the Knights of Gniew . Founder and member of the Gregorian choir "Schola Cantorum Gymevensis." Co-founder of the "Chapter of the Polish Knighthood." Co-organizer of the "Battle of Grunwald" staging, playing the role of Grand Master Urlich von Jungingen. Precursor of contemporary horse knightly coping tournaments in Poland. Partner at the Royal Armory Museum in Leeds. in Great Britain. Individual winner in numerous knightly tournaments, including: Tournois du Lys D'Argent in Canada, Tournament of the Phoenix in California, Saint Olaf Tournament in Norway, Easter Tournament in Royal Armories Museum in Leeds and Arundel International Tournament in Great Britain B ritania and in the King Jan III Tournament and the Golden Rose Tournament in Gniew Castle. Participant of many television and film productions promoting the cultural heritage and history of Poland and Europe. Elżbieta's husband, father of four and grandfather of three grandchildren.