“Rose and I were married for 40 happy years. She was a wonderful, caring wife, mother and grandmother.
“Her death has come as a terrible shock to us all. I would ask the media to respect the privacy of myself and my family at this extremely difficult time.”
Mrs Paterson, the daughter of the fourth Viscount Ridley, was the chairman of Aintree Racecourse.
Aintree Racecourse said: “We are deeply saddened by the tragic news of the passing of our wonderful Chairman, Rose Paterson.
“Our sincere condolences go out to her husband Owen, her family and many friends.”
The couple married in 1980 and had two sons Felix and Ned and a daughter named Evie.
Senior Steward of The Jockey Club Sandy Dudgeon said: “This is tragic news and our thoughts go out to Rose’s husband Owen and all members of her family.
“Rose was a wonderful person and involved in so many aspects of our sport.
“She was a skilled Chairman at Aintree, a valued member of our Board of Stewards and headed up our Horse Welfare Group. She also enjoyed participating at grassroots level over many years.”
MP Laurence Robertson tweeted: “As Joint Chairman of the All Party Parliamentary Group on Racing & Bloodstock (along with Conor McGinn MP) I should like to express my shock and sadness at the passing of Rose Paterson.
“She was a great Chairman of Aintree Racecourse and a very warm and friendly person.”