Final answer:
The National Convention was the group that finally forced Robespierre from power during the Reign of Terror.
Step-by-step explanation:
The group that finally forced Robespierre from power during the Reign of Terror was the National Convention. In July 1794, Robespierre and 21 of his followers were accused of treason by the National Convention. The next day, they were taken to the guillotine and executed, marking the end of the Reign of Terror.