Source : Webster's Revised Unabridged Dictionary (1913)

Enthronization \En*thron`i*za"tion\, n.
   The act of enthroning; hence, the admission of a bishop to
   his stall or throne in his cathedral.

Source : WordNet®

enthronization
     n : the ceremony of installing a new monarch [syn: {coronation},
          {enthronement}, {enthronisation}, {investiture}]