A majority interest of Remsen Stakes (gr. II) winner Windsor Castle has been purchased by Dogwood Stable, with a percentage in the colt remaining with his trainer, Frank Alexander. Cot Campbell, Dogwood president, said in a statement released Monday that Alexander would continue to train the Lord Carson colt. The purchase price was not disclosed.Campbell also said the stable expects to announce the name of a "prominent breeding farm as one of the partners in this venture.""We go back 22 years in our relationship with Frank Alexander," Campbell said. "He has done a great job with this colt and will, of course, continue to train him."Windsor Castle has won three of seven starts, highlighted by a 2 1/2-length victory in the Remsen last month at Aqueduct. Following that race Alexander said, "I had the horse sold last week, but the vet turned him down. There was a little ankle chip; not a big problem and it didn't amount to anything. ... He's still for sale. I'll take him to Florida on Tuesday and bring him back at Gulfstream."Besides the Remsen win, Windsor Castle also finished second in the Nashua and Cowdin Stakes, both grade III's, and won a Saratoga allowance race. Out of Frigidette, by It's Freezing, Windsor Castle has earned $209,100. Windsor Castle will begin his Triple Crown campaign this winter at Gulfstream Park. Windsor Castle was bred in Kentucky by Windwoods Farm.