In Königsberg, he led for 26 years the class of ancient plaster drawing. In 1853, he decorated a plafond of the Królewiec royal railway station. The middle room ceiling of the waiting room was adorned with an allegory depicting the benefits of the railway for the country. Maximilian also decorated with polychromes the auditorium of the University of Königsberg, between 1861 and 1872 together with G. Graf. From 1836 onwards, Piotrowski started to be present in many European exhibitions: Dresden, Ghent, Leipzig or Paris.
