In 1795, the French Republic survived two powerful attacks from the royalists: the battle of 13 Vendémiaire and the Battle of Quiberon, which were repelled with great difficulty. But the fate of those who led the reflection of these attacks, they influenced in completely different ways. If the suppression of the Vendémiaire riot brought the fame for Napoleon Bonaparte, the defeat of the royalists on the Quiberon peninsula, in which Jean-Lambert Tallien played an active role, became the starting point of the decline of his political career. The author of the article analyzes why the Battle of Quiberon brought a political fall for Tallien.