All but one of the nuns died in the outbreak of Plague in 1349, with the survivor becoming part of the Priory of St Michael in Stamford.
After Thomas' death, the Towers were leased to George Villiers, 2nd Duke of Buckingham, then used as a dower house and finally, part dismantled to provide an eye-catcher in the newly landscaped Burghley park.
Together, they are responsible for the future care and upkeep of the building, which now stands as a consolidated monument within the grounds of the site owned and occupied by the Griffins as a private residence.
The high point of 81 metres (266 ft) is located on Racecourse Road at TF 0353 0417, next to the county boundary with Northamptonshire.
Although unmarked, the summit is of interest to participants in hill bagging who visit these high points of the historic counties of England.