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
Stephen Foster (Lord Mayor of London) William Rowley's (15861626) play "A New Wonder, a Woman Never Vexed", based on their lives. Stephen Foster (Lord Mayor of London) Sir Stephen Foster (fl. 1454) was a fishmonger and later Lord Mayor of London. He was the son of Robert Foster of London, a stockfish merchant. Elected Sheriff of London in 1444, he became Lord Mayor of London in 1454, and served as the city's Member of Parliament in King Henry VI's 13th parliament. According to historian John Strype, Foster married a widow named Agnes, who enlarged Ludgate prison (where Foster had at one time been imprisoned for debt)