Task: Question Generation
Input (English): Context : Saint Ambrose barring Theodosius from Milan Cathedral is a 1619--1620 painting by Anthony van Dyck, now in the National Gallery in London. 
Subject : Saint Ambrose barring Theodosius from Milan Cathedral 
Relation : collection
Output (English): What is the name of the place where Saint Ambrose barring Theodosius from Milan Cathedral can be found?