Greater London - United Kingdom

Greater London is an English ceremonial county and region and now it gets difficult. The City of London is part of the region but is not part of the ceremonial county of Greater London because it is an ceremonial county of it is own. Greater London is divided in 32 boroughs and the City of London acts as an borough, the entirety has an mayor. Greater London came in exist in 1965 and is created out of parts from the counties of Essex, Hertfordshire, Kent, Surrey and ofcourse London itself and Middlesex was completly absorbed. The 32 boroughs are City of Westminster, Kensington and Chelsea, Hammersmith and Fulham, Wandsworth, Lambeth, Southwark, Tower Hamlets, Hackney, Islington, Camden, Brent, Ealing, Hounslow, Richmond, Kingston, Merton, Sutton, Croydon, Bromley, Lewisham, Greenwich, Bexley, Havering, Barking and Dagenham, Redbridge, Newham, Waltham Forest, Haringey, Enfield, Barnet, Harrow and Hillingdon. All this together Greater London has an population of 8,5 million and 5,1 million of them born in the United Kingdom itself. Greater London have many nationalities and the top 10 in the 2011 census are from: 
India 262,247
Poland 158,300
Republic of Ireland 129,807
Nigeria 114,718
Pakistan 112,457
Bangladesh 109,948
Jamaica 87,467
Sri Lanka 84,542
France 66,654
Somalia 65,333
So let's take an look at the flag.

The flag has two parts, 1/3 has an red background with an crown and 2/3 has white and blue wavy stripes. Don't find an explanation but i think the wavy pattern symbolize the river Thames that flows trough Greater London and other rivers and streams that flows to the Thames. The crown has something to do with Surrey, parts of the county are absorbed by Greater Londen. Since 1984 the flag has no special status but is still used. Ironically there is no information of this flag and Greater London is so populated. Make the flag official again, there is nothing wrong with it.