Gloucestershire County League was created in 1968.
North Gloucestershire League was created in 1907.
Gloucestershire County Cricket Club was created in 1870.
Gloucestershire Northern Senior League was created in 1922.
Tewkesbury is in the county of Gloucestershire.
Essex County League was created in 1937.
Gwent County League was created in 1980.
Gloucestershire
No - whilst you could use South Gloucestershire as an area to describe the location of another place (e.g. '_____ is in/around South Gloucestershire'), it is not actually a separate county in itself - it's just Gloucestershire.
Devon County Football League was created in 1992.
Sussex County Interscholastic League was created in 1976.
Somerset County Football League was created in 1890.
Staffordshire County Senior League was created in 2005.