Fratton Park is an association football ground in the English port city of Portsmouth in the United Kingdom. It remains as the original home of Portsmouth F.C., who were founded on 5 April 1898.
Uniquely, Fratton Park is the only football ground in English professional football that is not located on the mainland island of Great Britain, as Fratton Park is built on Portsea Island, where the city of Portsmouth is located.
The ground was built in 1899 on the site of a market garden in Milton, a Portsea Island farming village. Milton became a residential suburb of Portsmouth in 1904 when Portsmouth's boundaries were expanded to include all of Portsea Island.
Wikipedia https://en.wikipedia.org/wiki/Fratton_Park
Official Website https://www.portsmouthfc.co.uk/
Coordinates 50°47'47.036" N -1°3'49.858" E