If we’re sticking to the 3x3 grid, a very tentative list:
LG: Rosa Luxemburg, Salvador Allende.
NG: Petr Kropotkin, Shulamith Firestone.
XG: Kurt Eisner, George Orwell.
LN: Mikhail Gorbachev.
NN: Nestor Makhno, Zhou Enlai?
XN: Volodymyr Vynnychenko (for his alliance with the UPSS, which enabled pogroms), Nikolay Bukharin, Jean-Paul Sartre, Mao Zedong.
LE: Sergey Kirov, Nikita Krushchev (for his role in the purges), Leonid Brezhnev, Deng Xiaoping?
NE: Vladimir Lenin, Lev Trotskiy, Iosef Stalin.
XE: Ivan Sorokin, J. Posadas, Valerie Solanas, Pol Pot.
I’m taking vengeful as evil. And this may be too generous to Mao.