St. Paul's Walden Bury, St Paul's Walden, Hertfordshire. Grade II* listed. Built of red brick with stone dressings + slate roofs in the early 18th century for Edward Gilbert [1680|1762]. His daughter Mary married George Bowes of Gibside, Durham, the estate has been in the possession of the Bowes-Lyon family since 1720. The gardens are large + set in extensive woodland. In 1987 they were designated Grade I listed. The gardens were designed in part by Geoffrey Jellicoe.