Question

how the jacobins club seized power and declared France republic​

Answer 1

The Society of the Friends of the Constitution (French: Société des amis de la Constitution), after 1792 renamed Society of the Jacobins, Friends of Freedom and Equality , commonly known as the Jacobin Club (Club des Jacobins) or simply the Jacobins (/ French:  became the most influential political club during the French Revolution of 1789. The period of its political ascendancy includes the Reign of Terror, during which time well over ten thousand people were put on trial and executed in France, many for political crimes.