Knackfus studied architecture in Warsaw and was influenced by other local architects of late Baroque (Ephraim Schröger and Szymon Bogumił Zug) and early Neoclassicism (Domenico Merlini and Johann Christian Kammsetzer).
Knackfus studied architecture in Warsaw, being influenced by other local architects of late Baroque (Ephraim Schröger and Szymon Bogumił Zug) and early Neoclassicism (Domenico Merlini and Johann Christian Kammsetzer).