This is a representation of the coat of arms of the Roman Catholic Diocese of Sioux City.
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:Ouroboros-simple.svg by AnonMoos (talk · contribs)
 File:Commandsign King of Sweden.svg by Koyos (talk · contribs)
 File:Coa Illustration Cross Bottony.svg by Madboy74 (talk · contribs)
Own work
Alekjds