Those involved in the conspiracies were accused of aiming to incite an armed uprising, establish a republican government, and abolish serfdom while granting land to peasants.

[6] He was also the subject of a contemporary poem by Jerzy Czech titled Karol Levittoux, performed by Przemysław Gintrowski to his own music composition (the song was part of the 1991 program "Kamienie”).

[9] Karol's younger brother was Dr. Henryk Levittoux, a Warsaw doctor and naturalist, who posed for Jan Matejko's painting Astronomer Copernicus, or Conversations with God.

[11] During the May Coup in 1926, one of the victims was a student and member of Chrobatia fraternity[12]–Karol Levittoux's grandnephew, most likely killed by forces loyal to Józef Piłsudski.

[13] Karol's great-grandnephew, Major Henryk Julian Levittoux, a doctor and participant in the September Campaign, was murdered in Katyn massacre in May 1940 as a prisoner of Kharkiv camp.