The Collaborative International Dictionary of English v.0.48:

Balzac \Balzac\ n.
   Honore de Balzac, a French novelist; b. 1799, d. 1850.
   [Person]

   Syn: Honore Balzac. [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

Balzac
    n 1: French novelist; he portrays the complexity of 19th century
         French society (1799-1850) [syn: Balzac, Honore Balzac,
         Honore de Balzac]