Mayor of London the winner hours earlier. Mr Sadiq Khan, a member of the Labour party, is the first Muslim to be elected Mayor of London. Incumbent Mayor Boris Johnson did not run for re-election for a third term in office, as he had been elected the Member of Parliament for the Conservative Party in Uxbridge and South Ruislip in the 2015 General Election. Most powers are derived from the Greater London Authority Act 1999, with additional functions coming from the Greater London Authority Act 2007, the Localism Act 2011 and Police Reform and Social Responsibility Act 2011. The main functions are: The
John Gayer (Lord Mayor of London) John Gayer (Lord Mayor of London) John Gayer or Gayre (died 20 July 1649) was an English merchant who was Lord Mayor of London in 1646. He was born in Plymouth, eldest son of John Gayer senior, a merchsnt, and Margaret Trelawney. Both his parents were Cornish by birth: the Gayer family came originally from Liskeard. Gayer moved to London, and at one stage of his career spent some years in Syria, where a strange event later led him to institute the Lion Sermon. He became a city of London merchant and a member of the Worshipful Company of Fishmongers.