The Sancta Sanctorum chapel (Italian: Chiesa di San Lorenzo in Palatio ad Sancta Sanctorum) is a side chapel from the sancta scala (holy staircase) of the Lateran Palace, Rome. The artwork of the Sancta Sanctorum in Rome was the basis for the art at Assisi.[1] The spelling is sancta, the neuter plural form of the Latin adjective "holy": this is a reference to the multiple relics preserved there ("the most holy things") and to the Holy of Holies in Jerusalem, traditionally called in Latin both Sanctum sanctorum (the singular form) or Sancta sanctorum.