Bernard and Luke McGarrigle, who own and breed racehorses, will settle a dispute in court.
The pair are at odds over their business partnership. Bernard accuses Luke of owing him more than £146,000 in fees and expenses.
Bernard, a former jockey, breeds and races horses from stables at Cliveden owned by the National Trust.
He accuses his brother of wrongly claiming to own the horses outright, and of refusing to co-operate in registering horses, thus preventing them from being raced or sold.
Luke denies there was ever a partnership, according to a High Court writ.
Bernard is seeking an order for payment of £146,913.87 from his brother for the costs of rent, feed, stud and training fees, vets fees, and other expenses. No hearing date has been set.
This news story was first published in the current issue of Horse & Hound (28 July, 2011)