22-Year-Old Prince Frederik of Luxembourg Dies from Rare Mitochondrial Disease

Prince Frederik of Luxembourg, who was just 22, tragically passed away due to a rare mitochondrial disease known as POLG. What exactly is this POLG mitochondrial disease?
A Significant Loss for the Luxembourg Royal Family
The world was saddened by the news of the death of Prince Frederik of Luxembourg, the youngest son of Prince Robert of Luxembourg and Princess Julie of Nassau. He passed away at the age of 22 on March 1, succumbing to POLG mitochondrial disease, a rare and devastating genetic disorder.
It was his father, Prince Robert, who shared this news on the website of the POLG Foundation, an organization that Frederik established to raise awareness about this disease and to seek a cure.
A Brave Fight Against the Disease
Frederik dedicated his life to increasing awareness about this disease and funding research to combat it. He spent his final moments surrounded by his loved ones.
On February 28, the day before his death, he gathered all his family members in his room for an open-hearted conversation. According to his father, Frederik ended the talk with “a long-standing family joke”.
What is POLG Mitochondrial Disease?
POLG mitochondrial disease is a rare genetic disorder that weakens the body’s ability to produce energy at the cellular level, leading to progressive organ failure and deterioration of quality of life. It affects multiple organ systems—primarily the brain, nerves, muscles, and liver—and presents with a wide variety of symptoms, making its diagnosis and treatment particularly challenging.
Currently, there is no cure for this disease. Treatments focus on symptom management and improving quality of life.
Symptoms of POLG Disease
The symptoms of the disease vary depending on the age of onset. Common symptoms include ophthalmoplegia, muscle weakness, epilepsy, and liver failure. Those affected by POLG disease may also develop low muscle tone, developmental delays, movement disorders, limb weakness, depression, anxiety, headaches, hearing loss, vision loss, speech disorders, respiratory failure, and sleep apnea.
The passing of Prince Frederik has sparked renewed interest in POLG mitochondrial disease, a fight he led with relentless determination and courage.