Raquel Welch's cause of death revealed after she died following a 'brief illness'

Raquel Welch died after suffering a cardiac arrest, according to her recently published death certificate.

The Hollywood icon had also been secretly battling Alzheimer's disease, with the document stating this was one of the underlying causes of her death.

Raquel died in Los Angeles at the age of 82 on February 15, following what was described as a "brief illness".