 Boundary records compiled in the reign of John already showed the famous Tortworth Chestnut in South Gloucestershire, as a landmark; it was also known by the same name of "Great Chestnut of Tortworth" in the days of Stephen.This tree measured over in circumference at from the ground in 1720.The Hundred Horse Chestnut in the chestnut forests on Mount Etna is the oldest living chestnut tree and is said to be even larger.