Middlesex was an ancient county in England, but as of my last update in September 2021, it no longer exists as a separate administrative area. In 1965, the administrative county of Middlesex was abolished, and most of its territory was absorbed into Greater London, while some areas were transferred to neighboring counties such as Surrey, Hertfordshire, and Buckinghamshire.
Before its abolition, Middlesex was located in the southeastern part of England and bordered the River Thames to the south. It was one of the smaller counties in terms of land area but played an essential historical and cultural role. London, the capital city of the United Kingdom, was historically part of Middlesex, but it became a separate administrative county in the mid-19th century.
Since Middlesex is no longer an official administrative division, if you are referring to a specific location or want to know more about a particular area in the region that used to be Middlesex, please provide additional context, and I’ll do my best to assist you.