Who was the Roget de l'isle

A man who had written the national anthem of france

Marseillaise was a patriotic song composed by poet Roget de L’ Isle.
Although Louis XVI signed the constitution, he entered into secret negotiations with the King of Prussia. Rulers of the other neighbouring countries too were worried by the developments in France and made plans to send troops to put down the events that had been taking place there since the summer of 1789. Before this could happen, the National Assembly voted in April 1792, and declared war against Prussia and Austria. Thousands of volunteers thronged from the provinces to join the army. They saw this as a war of the people against kings and aristocracies all over Europe. So Marseillaise was sung for the first time by the volunteers from Marseilles as they marched into Paris and so got its name. The Marseillaise is now the national anthem of France.