Question: What constituency in North East Lincolnshire was mayored by Richard Barber in 1388?

full_context: Document 1: Andy Burnham Labour Party leadership campaign, 2015: Andy Burnham Labour Party leadership campaign, 2015
Document 2: Mayor of Derby: Names of the Mayors for the Borough of Derby from the first that was chosen on 3 July 1638 by the king's charter then granted to the town. The two last bailiffs were the two first mayors, Mr Mellor being proclaimed 3 July 1638 to be the mayor until Michaelmas and twelve months after but he died on 5 February 1639 and Mr Hope served the year out.
Document 3: John Bacon (judge): Bacon is first mentioned as acting in the capacity of attorney to Queen Eleanor in 1278-9, and is described in certain indentures of the exchequer, dated 1288, as 'clericus Regis' and 'custos rotulorum et brevium de Banco' and 'Regis thesauriarius et camerarius,' his business being to keep a list of the cases argued in the common pleas, and to transmit records thereof, and also 'pedes chirographorum,' i.e. memoranda of fines levied throughout the country, to the treasurers and chamberlains of the exchequer, of the receipt of which the indentures already mentioned were acknowledgments. The 'chirographa,' or fines in question, were fictitious suits, by means of which it was the custom to bar entails and convey the landed property of married women. Bacon seems to have held this post as late as 1309. In 1291 he was entrusted with the charge of Leeds Castle in Kent (a royal residence). In 1313 he was appointed to a justiceship of the common pleas, and in the same year we read of his being retained in London to advise the king upon some important matters. In 1314 he was made one of the commissioners of oyer and terminer for the counties of Norfolk and Suffolk, to try certain assessors and collectors of the revenue charged with breach of trust. In 1315 William de Beresford, the chief justice of the common pleas, being suddenly summoned to the king, the business of the court devolved upon Thrikingham and Bacon exclusively. We may conjecture that it was not very promptly or efficiently despatched, for it was but a short time since he had been enjoined to pay a more diligent attention to duty. In 1317 he was summoned with the rest of the judges to parliament at Lincoln, but the invasion of the Scots in that year caused the postponement of the parliament sine die. In 1320 he was placed on a commission to try certain persons charged with debasing and counterfeiting the coinage in the counties of Essex, Norfolk, and Suffolk, and in 1321 upon another directed to inquire into offences committed by sheriffs and other legal functionaries under colour of their official duties in the counties of Norfolk, Suffolk, Cambridge, and Huntingdon. He appears to have died in this year, Stonore being appointed justice of the common pleas in his place. He had landed property in Reston, Hemingston, Cleydon, and Akenham, places all of them in the county of Suffolk, and also in Essex, and at Shouldham in Norfolk.
Document 4: Diane Abbott: Diane Julie Abbott (born 27 September 1953) is a British Labour Party politician who was appointed Shadow Home Secretary in October 2016. She was first elected as the Member of Parliament (MP) for Hackney North and Stoke Newington at the 1987 general election, when she became the first black woman to hold a seat in the House of Commons.
Document 5: York Central (UK Parliament constituency): York Central is a parliamentary constituency which is represented in the House of Commons of the UK Parliament by Rachael Maskell of the Labour Party and the Co-operative Party, making it the only constituency in North Yorkshire not currently represented by the Conservatives.
Document 6: Barebone's Parliament: Barebone's Parliament, also known as the Little Parliament, the Nominated Assembly and the Parliament of Saints, came into being on 4 July 1653, and was the last attempt of the English Commonwealth to find a stable political form before the installation of Oliver Cromwell as Lord Protector. It was an assembly entirely nominated by Oliver Cromwell and the Army's Council of Officers. It acquired its name from the nominee for the City of London, Praise-God Barebone. The Speaker of the House was Francis Rous. The total number of nominees was 140, 129 from England, five from Scotland and six from Ireland (see the list of MPs).
Document 7: Stephen Barber: Stephen Barber (born 1974) is a British political scientist, political economist and author. He is currently Associate Professor in Public Policy at London South Bank University. He is also a Senior Fellow at London Metropolitan University's Global Policy Institute. He has also worked in the European Research Forum. He is a specialist in British public policy and party politics, political economy and having worked in the City of London, the globalisation of financial markets. He holds a BA in government, a MA in contemporary history and a PhD in political science, awarded by several London universities. He is a Fellow of the Royal Historical Society and Member of the Securities & Investment Institute. Following the Northern Rock and banking credit crisis in 2008, he outlined his concept of a regulatory cycle of economic behaviour.
Document 8: Ashton-under-Lyne (UK Parliament constituency): Ashton-under-Lyne is a constituency centred on the town of Ashton-under-Lyne that is represented in the House of Commons of the UK Parliament since 2015 by Angela Rayner of the Labour Party, who has served as Shadow Secretary of State for Education since 1 July 2016 and Shadow Minister for Women and Equalities since 27 June 2016.
Document 9: Brent Central (UK Parliament constituency): Brent Central is a constituency represented in the House of Commons of the UK Parliament. Created in 2010, it has been represented since 2015 by Dawn Butler of the Labour Party.
Document 10: Richard Leese: Sir Richard Charles Leese, CBE (born 21 April 1951) is a politician in Manchester, England. He has been the leader of Manchester City Council since 1996 and a member of the Labour Party since 1984. On 6 May 2017, Leese was appointed Deputy Mayor for Business and Economy by Greater Manchester Combined Authority Mayor, and former Shadow Home Secretary, Andy Burnham.
Document 11: Great Grimsby (UK Parliament constituency): Great Grimsby is a constituency in North East Lincolnshire represented in the House of Commons of the Parliament of the United Kingdom since May 2015 by Melanie Onn of the Labour Party.
Document 12: Leigh (UK Parliament constituency): Leigh is a constituency in Greater Manchester represented in the House of Commons of the UK Parliament since 2017 by Joanne Platt of the Labour Party.
Document 13: Richard Barnbrook: Richard Barnbrook (born 24 February 1961) is a British former politician and an ex-member of the London Assembly. He was elected as a British National Party (BNP) list candidate in the 2008 election, though he resigned the BNP whip in August 2010 and subsequently sat as an independent. Barnbrook was a councillor, and leader (2006–08), then deputy leader (2008–10), of the BNP group on Barking and Dagenham London Borough Council. He represented Goresbrook ward. Barnbrook retired from politics in May 2012.
Document 14: Richard Barber (MP): Richard Barber was the member of Parliament for Great Grimsby in 1388 and mayor of that town.
Document 15: Barran baronets: The Barran Baronetcy, of Chapel Allerton Hall in Chapel Allerton in the West Riding of the County of York and Queen's Gate, St Mary's Abbot, in Kensington in the County of London, is a title in the Baronetage of the United Kingdom. It was created on 11 February 1895 for the merchant and Liberal politician John Barran. He represented Leeds and Otley in the House of Commons. He was succeeded by his grandson, the second Baronet. He sat as Liberal Member of Parliament for Hawick and served as Parliamentary Private Secretary to Prime Minister H. H. Asquith.
ground_truth: Great Grimsby