Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Sybil Cholmondeley, Marchioness of Cholmondeley:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

The Sybil Sassoon Gardens at Houghton were opened to the public in 1996. Lady Sybil's grandson, the current marquess, developed the gardens in honour of his grandmother. In 2008, the garden was named Historic Houses Association and Christie's Garden of the Year.[2] In "the pool garden", the entwined initials "SS" are represented in the outlines of the clipped box-hedge which surrounds plantings of lavender and rosemary.[3] She is buried in the Church of St Martin on the Houghton Hall estate.[4] Through her son George Hugh Cholmondeley, Sybil is the great-grandmother of actor Jack Huston.[citation needed]