In a fun essay named The Eighteenth Brumaire of Louis Napoleon, though apparently lifted by Marx from a letter to him by Engels:
https://en.m.wikipedia.org/wiki/The_Eighteenth_Brumaire_of_L...
So really it was Engels.
https://en.m.wikipedia.org/wiki/The_Eighteenth_Brumaire_of_L...
So really it was Engels.
[0] https://en.wikipedia.org/wiki/Stigler%27s_law_of_eponymy