Pope Leo XIV's brother Louis Prevost also battling cancer, wife tells CBS News
October 13, 2026 / 6:46 PM EDT / CBS News
TL;DR
- Louis Prevost, Pope Leo XIV's older brother, has been diagnosed with multiple myeloma.
- His wife confirmed his ongoing treatment in a clinical trial.
- Louis Prevost was first diagnosed in 2017 but relapsed three months ago.
- Pope Leo XIV was recently diagnosed with lung adenocarcinoma after surgery.
- The Vatican has not disclosed the stage or spread of the Pope's cancer.
- The family remains hopeful and is praying for both Louis and the Pope.