| Horsename: | Bay Bolton |
| Sire: | Grey Hautboy |
| Grandsire: | Hautboy |
| Dam: | Makeless mare |
| Damsire: | Makeless |
| Sex: | Stallion |
| Foaled: | 1705 |
| Country: | Great Britain |
| Colour: | Brown/Bay |
| Breeder: | Sir Matthew Pierson |
| Owner: | 2nd Duke of Bolton |
| Race: | Queen Anne's Gold Cup (1710) |
| Honours: | Leading sire in Great Britain and Ireland (1724, 1726, 1727, 1729, 1732, 1733, 1734) |
| Updated: | 30 October 2012 |
Bay Bolton or Brown Lusty (1705–1736) was a British Thoroughbred racehorse who won Queen Anne's Gold Cup as a five-year-old in 1710. After retiring from racing he became a successful sire for the Charles Paulet, 2nd Duke of Bolton, and his son Charles Powlett, 3rd Duke of Bolton, was Champion sire seven times.
Bay Bolton (originally called Brown Lusty) was a brown or bay colt foaled in 1705. Bred by Sir Matthew Pierson, he was a son of Grey Hautboy and a Makeless mare.[1]
At York in 1710, Bay Bolton (then a five-year-old) beat eight six-year-olds to win Queen Anne's Gold Cup. In 1710 he also won the Subscription Purse at Middleham-Moor.[1] He then walked 200 miles to run in, and win, the Rich Prize at Quainton-Meadow in Buckinghamshire.[2] Bay Bolton was then bought by the Duke of Bolton, who sent him to Newmarket, where he won a match race against the Duke of Somerset's Wyndham and a match against Sir Matthew Pierson's Merlin. He also won two match races against Mr Frampton's Dragon.[1]
Bay Bolton was retired to stud where he became a very successful stallion, becoming Champion sire in 1724, 1726, 1727, 1729, 1732, 1733 and 1734. His progeny included Bonny Lass, Fearnought, Looby, Starling (a Champion sire) and Whitefoot.[3] He died at the Duke of Bolton's stud at Bolton Hall in Yorkshire in 1736.[1]
* Bay Bolton is inbred 3S × 3D to the stallion Places White Turk, meaning that he appears third generation on the sire side of his pedigree and third generation on the dam side of his pedigree.
* Bay Bolton is inbred 3D × 3D to the mare D'Arcy Yellow Turk mare, meaning that she appears twice in third generation on the dam side of his pedigree.
* Bay Bolton is inbred 4D × 4D x 4D to the stallion D'Arcy Yellow Turk, meaning that he appears thrice in fourth generation on the dam side of his pedigree.