Such was its course, and from its description we see that it was no insignificant stream, and may assume that the first settlers in those northern parts of London must be looked for on its banks. Like the Fleet, it had various names in different localities; thus at Kilburn it was known as the Keele Bourne, Coldbourne, and Kilbourne; at Bayswater it was called the Bayswater Rivulet; the name of Bayswater itself is supposed to be derived from Baynard, who built Baynard Castle on the Thames, and also possessed lands at Bayswater. At the end of the fourteenth century it was called Baynard’s Watering-place, which in time was shortened to its present appellation.
The bridge which gave Knightsbridge its name was a stone bridge; by whom or when erected is not on record, but probably Edward the Confessor, who conferred the land about here on the Abbots of Westminster, also built the bridge for their accommodation. The road was the only way to London from the west, and the stream was broad and rapid. The bridge was situated in front of the present entrance into the Park by Albert Gate, and part of it still remains underground, while the other portion was removed for the Albert Gate improvements. In the churchwardens’ accounts of St. Margaret’s, Westminster, are the following entries regarding the bridge:
1630. Item, received of John Fennell and Ralph £ s. d. Atkinson, collectors of the escheat, for repair of Brentford Bridge and Knightsbridge . . . . 23 6 4
1631. Item, paid towards the repairs of Brentford Bridge and of Knightsbridge, etc. . . . . . . 24 7 10
The Westbourne was occasionally a source of inconvenience and even danger to the inhabitants of Knightsbridge. After heavy rains or in sudden thaws it overflowed. On September 1, 1768, it did so, and did great damage, almost undermining some of the houses; and in January, 1809, it overflowed again, and covered the neighbouring fields so deeply that they resembled a lake, and passengers were for several days rowed from Chelsea to Westminster by Thames boatmen.
On the site now covered by St. George’s Row, Pimlico, there stood in the middle of the last century a house of entertainment known as ’Jenny’s Whim.’ A long wooden bridge over one of the many arms of the Westbourne led up to the house. The present Ebury Bridge over the Grosvenor Canal, which this river-branch has become, occupies the site of this old bridge. ’Jenny’s Whim’ had trim gardens, alcoves, ponds, and facilities for duck-hunting; in the gardens were recesses, where, by treading on a spring, up started different figures, some ugly enough to frighten people, a harlequin, a Mother Shipton, or some terrible animal. Horace Walpole occasionally alludes to ’Jenny’s Whim’; in one of his letters to Montagu, he says: ’Here (at Vauxhall) we picked up Lord Granby, arrived very drunk from Jenny’s Whim.’ Towards the beginning of this century ’Jenny’s Whim’ began to decline; at last it sank down to the condition of a beershop, and in 1804 it was finally closed. The origin of the name is doubtful. Davis, the historian of Knightsbridge, accepts the account given him by an old inhabitant, that it was so called from its first landlady, who directed the gardens to be laid out in so fantastic a manner as to cause the noun to be added to her own Christian name. Other reports say that the place was established by a celebrated pyrotechnist in the reign of George I.; but that does not account for the name.