I can provide a clear and concise answer to your question:
Maximilien de Robespierre was executed because he eventually became a tyrant during the French Revolution. Robespierre was a key figure in the Reign of Terror, a period marked by mass executions of those deemed enemies of the revolution. His increasing authoritarianism and support for extreme measures led to fear and opposition among his colleagues. As a result, he was arrested, found guilty of treason by the National Convention, and ultimately executed by guillotine on July 28, 1794. Robespierre's execution marked the end of the Reign of Terror and a shift towards a more moderate phase of the French Revolution.
Feel free to ask if you have any more questions or need further clarification.
