Task: Question Generation
Input (English): Context : Nikolaus Gerhaert (c.1420 -- 11 June 1473), also known as Nikolaus Gerhaert van Leyden, was a sculptor of Dutch origin, although aside from his sculptures, few details are known of his life. 
Subject : Nikolaus Gerhaert 
Relation : date of death
Output (English): What date did Nikolaus Gerhaert die on?