Plato (c.428-c.348 BC)
Chirk Castle, Wrexham
Chartwell, Kent
Aristotle (384-322 BC)
Ormesby Hall, Redcar and Cleveland
Llanerchaeron, Ceredigion
John Stuart Mill (1806-1873)
Mottisfont, Hampshire
David Hume (1711-1776)
Sissinghurst Castle Garden, Kent
Alexander Dunlop Lindsay, Baron Lindsay of Birker, CBE (1879-1952)
Greys Court, Oxfordshire
Chastleton House, Oxfordshire
James Bryce, 1st Viscount Bryce (1838-1922)
Dunham Massey, Cheshire