Ascott House was originally a farm house, built in the reign of James I and known as "Ascott Hall". In 1873 it was acquired by Baron Mayer de Rothschild (of the neighbouring Mentmore Towersestate). The Rothschild family had begun to acquire vast tracts of land in Buckinghamshire earlier in the century, on which they built a series of large mansions from 1852 onwards. Baron Mayer gave the house at Ascott to his nephewLeopold de Rothschild, who transformed it over the following decades into the substantial, but informal, country house it is today.
Couldn't have put it better myself!
The yew topiary sundial reads "Light and shade by turn, but love always"