Barère, French revolutionary, a member of the States-General, the National Assembly of France, and the Convention; voted in the Convention for the execution of the king, uttering the oft-quoted words, "The tree of Liberty thrives only when watered by the blood of tyrants;" escaped the fate of his associates; became a spy under Napoleon; was called by Burke, from his flowery oratory, the Anacreon of the Guillotine, and by Mercier, "the greatest liar in France;" he was inventor of the famous fable "his masterpiece," of the "Sinking of the Vengeur," "the largest, most inspiring piece of blaque manufactured, for some centuries, by any man or nation;" died in beggary (1755-1841). See Vengeur.