Patrick J. Rooney, a son of Steelers founder Art Rooney Sr. and brother of former chairman Dan Rooney has died in Florida at the age of 84.
Patrick's twin brother John died last year.
They were the youngest of the Rooney children.
Two of "The Chief's" children are still alive, Timothy and Art Rooney Jr.
The Steelers released a statement following Rooney's passing.
