Exhibit 99.4




                CONSENT OF PERSON ABOUT TO BECOME A DIRECTOR


     The undersigned, Robert C. Williams, hereby consents to the reference to
him in the Proxy Statement/Prospectus forming a part of the Registration
Statement on Form S-4 of First Commonwealth Financial Corporation as a person
who will become a director of First Commonwealth Financial Corporation upon
consummation of the United National Bancorporation merger described in the Proxy
Statement/Prospectus.



                                          /s/Robert C. Williams
                                      -------------------------------       
                                             Robert C. Williams

June 17, 1994