Americus (foaled 1892, died 1910), was an American Thoroughbred racehorse who was exported to England.
He continued to race in England, until he was nine years old, while also standing as a breeding stallion.
His maternal grandmother was a mare named The Nun, sired by Lexington.
[12] While still a three-year-old, he was exported to England where he was registered in the General Stud Book.
[7] Americus' importation to England occurred before the imposition of the Jersey Act, which allowed him and his offspring to be registered in the General Stud Book, something that would not have happened had he been imported into England after 1913, due to the Jersey Act's prohibition on registering horses tracing to Lexington in the General Stud Book.
[7] In 1899, as a seven-year-old, Americus was described as looking "as fat as a showyard bull"[14] before he ran in the Stewards' Cup at Goodwood, but belied his appearance by running well for five furlongs before fading into fourth place.
Lady Josephine was in turn the dam of Mumtaz Mahal, later owned by the Aga Khan and a famous broodmare.