A classic of French literature!
Anatole France (1844-1924) was a Nobel laureate in literature, and in this fiction told in the third person, he recounts the story of Evariste Gamelin.
Gamelin was a Jacobin painter who maintained enormous enthusiasm for the French Revolution (1789), even five years later, when many French people were disappointed with the end of the monarchy.
The painter obtained a position as a judge in the Revolutionary Tribunal, where he judged those who went to the guillotine:
traitors to the movement; people who shouted "Long live the King"; former aristocrats (bankers, owners of many properties, large landowners...).
However, anyone who disagreed with the Revolution became an enemy of France and was condemned to the guillotine.
Evariste, well-intentioned, transforms throughout the book into someone capable of condemning even his own family simply for disagreeing with him.
"Give a man power and you will see who he really is." (Machiavelli)