Frida Kahlo’s husband may have helped her die, reveals Diego Rivera’s grandson

The revered Mexican artist's suffering was so great, she probably' asked her soulmate to assist in ending her life, documentary is told

People's love of Frida Kahlo's vibrant art is matched by fascination with her colourful private life. Now the battle to win greater attention for her talent - above and beyond her extraordinary, painful personal story - faces another potential knock.

A documentary about the Mexican artist is to reveal a secret suspicion that endures within the family of her husband and great love, the renowned muralist Diego Rivera.