Model Dayle Haddon died in a suspected carbon monoxide leak at the Bucks County home of her son-in-law, Hallmark movie star Marc Blucas, officials said.

Dayle Haddon, the only model to have had four major cosmetics contracts, died Friday.

Dayle Haddon, a supermodel, actress, and humanitarian died in Bucks County, Pennsylvania of carbon monoxide poisoning. The 76-year-old Canadian-born icon was found dead Friday morning in a detached “in-law” suite on the property of her daughter, Ryan Haddon, and son-in-law, actor Marc Blucas.