The countess was a revolutionary and a socialist. Whether she was a revolutionary socialist is up for debate, I'd argue not.
On the Russian comrades, fair enough if people don't want to include middle class bolsheviks as working class heroes. Even if they spent years in jail or exile because of their membership of pro-working class parties.
One things for sure. Mairead Farrel don't count. Middle class convent girl who became a revolutionary nationalist. Nothing to do with the working class I'm afraid either by origin or politics. Doesn't make her murder by the british state any more acceptable mind but she doesn't belong on this thread.