United Kingdom, June 18 -- Chicago founding member Walter Parazaider has died at the age of 81.

The musician lost his six-year battle with Alzheimer's - a type of dementia that impacts memory, thinking and behaviour - at 2.10am on Wednesday morning (17.06.26) while in hospice, surrounded by his wife, JacLynn.

She added to TMZ: "He had put up a good fight with Alzheimer's, and unfortunately, it ended tonight. We are going to miss him for sure ... We were married for 59 years, and we had 59 wonderful years."

In addition to JacLynn, Walter is survived by their daughters, Laura and Felicia.

Felicia shared the pain he and his family went through since Walter's Alzheimer's diagnosis in 2021, and she is glad the rocker is now at peace.

Her ...