The minstrel was known as Roland le Fartere and that the trick was to make a leap, a whistle and a fart

Henry II, in the twelfth century, had been so fond of the favourite party trick of one of his minstrels that he gave him a thirty-acre estate in Suffolk, on the sole condition that he and his heirs repeated it in the royal presence every Christmas. When one learns that the minstrel was known as Roland le Fartere and that the trick was to make a leap, a whistle and a fart, one can understand why his descendants had alienated the estate by the 1330s.

J. Barker Agincourt (2005), 139