Source : Webster's Revised Unabridged Dictionary (1913)

Pardoner \Par"don*er\, n.
   1. One who pardons. --Shak.

   2. A seller of indulgences. [Obs.] --Chaucer.

Source : WordNet®

pardoner
     n 1: a person who pardons or forgives or excuses a fault or
          offense [syn: {forgiver}, {excuser}]
     2: a medieval cleric who raised money for the church by selling
        papal indulgences