This is a representation of the coat of arms of the Roman Catholic Diocese of Pittsburgh, slightly more ornamented than my earlier rendition of the same.
Sable, a fess chequy argent and azure, in chief two crosses-pattées-arrondies or, over all in pale a sword, hilt in base, of the last.
The following Commons images were used to create this image:

 File:Roman Catholic Diocese of Erie.svg by Niagara (talk · contribs) (mitre)
 File:Old French Escutcheon.svg by Masur (talk · contribs)
 File:Coa Illustration Cross Pattee rounded.svg by Madboy74 (talk · contribs)
Own work
Alekjds