Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

[Q]: Context : Portrait of Pier Maria Rossi di San Secondo is a painting by the Italian Mannerist artist Parmigianino, executed around 1535--1539 and housed in the Museo del Prado, Madrid, Spain. 
Answer : Museo del Prado
[A]: What is the name of the place where Portrait of Pier Maria Rossi di San Secondo can be found?


[Q]: Context : General Sir William Gabriel Davy, KCH (1780 -- 25 January 1856) was a British Army officer who fought in the Peninsular War. 
Answer : Peninsular War
[A]: Which war was William Gabriel Davy a part of?


[Q]: Context : Offenbach Ost station was opened on 15 November 1873 on the Frankfurt-Hanau line. 
Answer : 15 November 1873
[A]:
When was Offenbach Ost station opened officially?