Once the most powerful person in France, Nicolas Sarkozy, is now behind bars.

Nicolas Sarkozy will become the first former French president in living memory to be imprisoned when he is expected to begin a five-year sentence Tuesday in Paris’ La Santé prison.

Sebastien Cauwel, who heads up the high-profile La Sante prison in Paris where Sarkozy will be jailed, said the former President would be held in isolation.