This excerpt taken from the PNC 10-K filed Mar 2, 2009.
NATIONAL CITY PENSION PLAN ASSETS
Assets related to the pension plan investments of the former National City qualified pension plan are held in trust. The trustee is National City Bank. The Trust is exempt from tax pursuant to section 501(a) of the Code. The plan is qualified under section 401(a) of the Code. Plan assets consist primarily of listed domestic and international equity securities and US government, agency, and corporate debt securities and real estate investments. Plan assets do include common stock of PNC as discussed below.