Douglas Harper's Etymology Dictionary
neighborhood near Chelsea in London, named for Sir Hans Sloane who purchased the manor of Chelsea in 1712 and whose collections contributed to the British Museum. Previous to development the place was known as Great Bloody Field ["Oxford Dictionary of London Place Names"]. Sloane Ranger attested from 1975, with a play on Lone Ranger.
Wikipedia
Sloane Square is a small hard-landscaped square on the boundaries of the central London districts of Knightsbridge, Belgravia and Chelsea, located southwest of Charing Cross, in the Royal Borough of Kensington and Chelsea. The area forms a boundary between the two largest aristocratic estates in London, the Grosvenor Estate and the Cadogan. The square was formerly known as 'Hans Town', laid out in 1771 to a plan of by Henry Holland Snr. and Henry Holland Jnr. Both the square and Hans Town were named after Sir Hans Sloane (1660–1753), whose estates owned the land at the time.
Usage examples of "sloane square".
Since the night on which she had been received as a neophyte she had realized that the Temple could not be so far away from Sloane Square as North London but, all the same, she was surprised to find that it was actually within ten minutes' drive of Cromwell Road.
Tottering down Sloane Street toward Sloane Square in a maroon Opel, surrounded by coughing black taxis, two-story-high red buses and darting scruffy Minis the size of washing machines and the color of week-old snow, Kelp struggled to deny all his deepest driving instincts.
He gave me directions to a street south of Sloane Square, not more than a mile from where I was staying.
Miss Johnston took a taxi from Sloane Square to the Chelsea Registry Office.
Daphne arrived late and complained about being held up in a traffic jam on her way back from Sloane Square, while the colonel traveled down from Skye without a murmur.
Go to the westbound platform of Sloane Square Underground station and walk the full length of it slowly.
You crossed Sloane Square, turned up King's Road, and finally arrived here.
Despite the snow, there had been a flower seller in Sloane Square.
I'd known the police car was behind me since I'd come through Sloane Square but I didn't think they'd make a fuss about jumping the lights on a filthy night like this.
The lights of Victoria saw him too, and Sloane Square, and the railings of the park.
The town house she entered had an excellent view of the spires of Holy Trinity Church just north of Sloane Square.