Its dedication derives from a 12th-century reference to it being near a place “where corn is sold". Rebuilt in 1430, and beautified in 1617, the parish officers were re-appointed for the last time in July 1666.
The Mortality Bill for the year 1665, published by the Parish Clerk’s Company, shows 97 parishes within the City of London. By September 6 the city lay in ruins, 86 churches having been destroyed. In 1670 a Rebuilding Act was passed and a committee set up under the stewardship of Sir Christopher Wren to decide which would be rebuilt. Fifty-one were chosen, but St Michael-le-Querne immediately to the north east of Paternoster Row  in Farringdon Within Ward was one of the unlucky minority never to be rebuilt. Following the fire it was united to St Vedast Foster Lane and partial records still survive at IGI.
^Parish boundary mark on wall of St Paul's Choir School
^"The London Encyclopaedia" Hibbert,C;Weinreb,D;Keay,J: London, Pan Macmillan, 1983 (rev 1993,2008) ISBN 978-1-4050-4924-5
^"A Dictionary of London" Harben,H: London, Herbert Jenkins, 1918
^Huelin, G, “Vanished Churches of the City of London”, London,Guildhall Library Publications, 1996ISBN 0-900422-42-4
^”Vanished Churches of the City of London” Huelin,G London Guildhall Library Publishing 1996 ISBN 0-900422-42-4
^Church of England. Parish of St. Michael le Querne. Vestry and parish officers- Churchwardens' accounts. Ms 02895 cited in “City of London Parish Registers Guide 4” Hallows,A.(Ed) - London, Guildhall Library Research, 1974 ISBN 0-900422-30-0
^"The ancient office of Parish Clerk and the Parish Clerks Company of London" Clark, O :London, Journal of the Ecclesiastical Law Society Vol 8, January 2006 ISSN: 0956-618X
^The "Churches of the City of London" Reynolds,H: London, Bodley Head, 1922