Question: When was the by-election of a constituency represented in the House of Commons of the UK Parliament since 2010 by David Rutley held on?
Related documents: [0]  [DOC] Macclesfield is a constituency represented in the House of Commons of the UK Parliament since 2010 by David Rutley, a Conservative. [END] 
[1]  [DOC] The Macclesfield by-election, 1971 was a parliamentary by-election held on 30 September 1971 for the constituency of Macclesfield in Cheshire. It was caused by the elevation to the peerage of the sitting MP, the Conservative Arthur Vere Harvey. [END] 
Answer: 
30 September 1971
30 September 1971