Mayor of London Mayor of London The Mayor of London is the executive of the Greater London Authority. The current Mayor is Sadiq Khan, who took up office on 9 May 2016. The position was held by Ken Livingstone from the creation of the role on 4 May 2000, until he was defeated in May 2008 by Boris Johnson, who served two terms before being succeeded by Khan. The role, created in 2000 after the London devolution referendum in 1998, was the first directly elected mayor in the United Kingdom. The Mayor is scrutinised by the London Assembly and, supported by their Mayoral
Lord Mayor of London Mayor of London has worn a Royal Livery Collar of Esses. However, the collar's origins are not royal, Sir John Alleyn, thrice Lord Mayor, having bequeathed it to the next Lord Mayor and his successors "to use and occupie yerely at and uppon principall and festivall dayes." It was enlarged in 1567, and in its present shape has 28 Esses (the Lancastrian ‘S’), Tudor roses and the tasselled knots of the Garter (alternating) and also the Portcullis, from which hangs the Mayoral Jewel. The collar is worn over whatever the Lord Mayor may be wearing, secured onto their underdress or