The Duchess of Cornwall is to visit the Royal Bath and West Show on the opening day of the 151st show - May 28.
She is president of the Royal Bath and West of England Society, which stages the show.
The Royal Bath and West Show is the only four-day agricultural show in England and will take place from May 28 to 31 at the Showground in Shepton Mallet.
Alan Lyons, show manager, said: “We are delighted HRH The Duchess of Cornwall will be coming to this year’s Royal Bath and West.
“It will be her second visit to the show in the last few years and we are looking forward to showing the best that the West Country has to offer in terms of agricultural developments, livestock, food and drink.”