It’s made by Tomasz Baginski, guy with enourmous talent, you should see his other productions: “Katedra” and the one made for 600th aniversary of Polish-Lithuanian victory against Teutonic Order at Grunwald.
Did you come for the BAttle of Funwald re-enactment? It was beastly hot this year, but it seems like it was pretty hot in 1410 and that’s one of the reasons the Teutonic knights failed (they boiled in their armour, while the Poles and Litwa were lightly armoured)