She won the Cannes Film Festival’s best actress award for her debut performance in 1999 and was later diagnosed with a rare adrenal gland cancer.

Dequenne, the Belgian actor who won a top Cannes Film Festival prize for her breakout role in “Rosetta,” has died, a news report says. She was 43. Her family and agent told the news agency Agence France-Presse that Dequenne died Sunday of a rare cancer in a hospital outside of Paris.

Dequenne worked with some of the most esteemed European directors of her generation, from the Dardenne brothers, to Andre Techine, to Emmanuel Mouret.Émilie Dequenne, the renowned Belgian actress who won the Best Actress prize at the Cannes Film Festival for her film debut,