Mathiez, Levebvre, and Soboul (I don't know about Rud´e) were all members of the Stalinist PCF, and so had an enormous ideological bias in favor of Robespierre, that forerunner of the Moscow trials. Daniel Gu´erin and Jaur`es (not to mention Buchner) had very different views, though of course siding with Robespierre and Danton against their fellow Jacobins, the "Brissotins" ("Girondists").
Jaur`es: "Yes, there was much in him of the religious sectarian, of the priest, an intolerable claim to infallibility, conceited pride in a narrow virtue, the tyrannical habit of judging everything by the measure of his own opinions, and toward the sufferings of others he had the terrible hardness of heart of a man obsessed by an Idea, a man who gradually has come to confuse his ego and his faith, to confuse the interests of his ambition and those of his cause."
Despite his lack of "virtue," I have enormous sympathy for Danton, both as person and as politician, as against Robespierre. Louis XVI's head was forfeit to his own crimes. But the executions of Lavoisier and Ch´enier were crimes against the human spirit.
Shane Mage
"Thunderbolt steers all things...It consents and does not consent to be called Zeus."
Herakleitos of Ephesos