Find out more about Simon and his seven-year romantic relationship with Adele below.
She was born April 21, 1958 in Gaffney, South Carolina as Rosalie Anderson MacDowell, and signed a modeling contract in 1978 with Elite Model Management.
It is not clear if any of the five models who have died recently knew one another.
Olivia's agency said they were shocked by her death.
SplashNews Before he met the talented Brit, Simon was married to stylist Clary Fisher from 2004 to 2008 and they had a daughter together.
She has since had a long-running successful career, starring in hit movies like Groundhog Day, Four Weddings and a Funeral, Multiplicity, and more.