The French Revolution Radical crossword solutions are JACOBIN (7 letters) and Marat (5 letters). The Jacobins were a radical political group during the French Revolution, who advocated for the execution of the king and the establishment of a republic. They were led by Maximilien Robespierre and were known for their extreme views. Jean-Paul Marat was a journalist and politician who was a leader of the radical Montagnard faction during the French Revolution. He was assassinated in 1793 by Charlotte Corday.