The Collaborative International Dictionary of English v.0.48:
Pledgee \Pledg*ee"\, n. The one to whom a pledge is given, or to whom property pledged is delivered. [1913 Webster]WordNet (r) 3.0 (2006):
pledgee n 1: someone to whom a pledge is made or someone with whom something is deposited as a pledgeBouvier's Law Dictionary, Revised 6th Ed (1856):
PLEDGEE. The same as pawnee. (q.v.)