He has owned the Tudor manor house at Owlpen Manor in Gloucestershire with its associated estate since 1974, where he has opened the house to the public.[6] He was co-founder of Mander Portman Woodward in 1973, a group of independent sixth-form colleges based in London, and of Sutton Publishing in Gloucester.[7] He has acted as a company director of a number of companies in the UK and Spain, and served as founder chairman of The Gloucestershire County History Trust (2010) and the Gloucestershire Care Partnership (2006),[8] and as a trustee of the Orders of St John Care Trust and the Woodchester Mansion Trust[9] among many charitable and voluntary organisations.
He is the author of Varnished Leaves, a history of the Mander family (2004), Country Houses of the Cotswolds (Aurum Press, 2008; Rizzoli, 2009, reprinted 2016), and of a personal memoir, Owls among Ruins (2022). He has contributed articles and reviews, principally on art and architectural history, to academic journals, newspapers and magazines.[10]
Mander briefly appeared in the 2017 film Phantom Thread as Lord Baltimore.[11]The Trouble with Home, a documentary film about the life of the family at Owlpen Manor, was made for HTV West and screened in July 2002.
Owlpen Manor: a short history and guide to a romantic Tudor manor house in the Cotswolds (Owlpen, fourth edition 1995; revised 1997, 2000, 2006), 80 pp. ISBN978-0-9546056-1-2OCLC892627680
'The painted cloths at Owlpen Manor, Gloucestershire', in Nicola Costaras and Christina Young (eds), Setting the Scene: European Painted Cloths from the Fourteenth to the Twenty-First Century (Archetype, 2013) ISBN978-1-904982-90-6OCLC888679191
Varnished Leaves: a biography of the Mander family of Wolverhampton (Owlpen Press, 2004) xvi, 381 pages: illustrations, portraits; 24 cm ISBN978-0-9546056-0-5OCLC62614241
'Painted Cloths: History, Craftsmen and Techniques', in Textile History, v28 n2 (199701): 119-148 Unique Identifier: 5525853785. ISSN0040-4969
'Painted Cloths', in Bruce R Smith and Katherine Rowe (eds), The Cambridge Guide to the Worlds of Shakespeare (New York: Cambridge University Press, 2016), vol. 1, pt 6. OCLC890799092.
Borromean Rings: the genealogy of the Mander Family (Owlpen Press, 2011; 2nd edition, revised, 2022) ISBN978-0-9546056-0-5
'Wightwick Manor and the creation of the house beautiful' in Peter Burman, ed., Architecture 1900 (Shaftesbury, Dorset: Donhead, 1998), xiv, 366 pages: illustrations; 24 cm) ISBN978-1-873394-32-8OCLC40215662
'Last of the Midland Radicals; biography of Sir Geoffrey Mander, Liberal MP for Wolverhampton East, 1929-45' in Journal of Liberal History, Issue 53, (Winter 2006-07)
Family
Mander married Karin Margareta, younger daughter of Gustav Arne Norin, of Bromma, Sweden, on 24 June 1972. They have five children:[12]
Charles Marcus Septimus Gustav Mander (born 1975), heir apparent to the baronetcy, barrister of the Middle Temple. He married Claire Wylie, by whom he has one son and three daughters.[13]
Benedict Edward Arthur Mander (born 1977), former journalist with the Financial Times. He married Valentina Dorronsoro of Caracas, Venezuela, and has two sons and one daughter.
Hugo Richard Theodore (born 1981). He married Ciara Campfield and has three sons and one daughter.
Fabian Edmund Quintin (born 1987). He married Amy Koller and has two daughters.
Sarra Maryam (born 1973). She married Stephen Earl and has two sons and one daughter.
On a wreath of the colours, a demi-lion couped ermine holding in the paws two annulets interlaced fessewise gules, between two buffalo horns of the last.
Escutcheon
Gules, on a pile invected erminois, three annulets interlaced, two and one of the field.
^Mosley, Charles, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Burke's Peerage (Genealogical Books) Ltd, 2003), volume 2, page 2589, sub Mander baronetcy of the Mount [U.K.], cr. 1911.
^Kidd, Charles (editor), Debrett's Peerage and Baronetage, Debrett’s, 2008, B 626-7
^Grant 72/174 to Charles Tertius Mander confirmed by Sir Albert William Woods, Garter, and George Edward Cokayne, Clarenceux, Heraldic Coll. 30 May 1901, with extended limitation to descendants of Charles Benjamin Mander and Samuel Small Mander. (Ermine three Annulets interlaced gules occurs as arms for Mandere in Smith’s Ordinary (1599); the shield was confirmed by Edward Bysshe, Garter, to Thomas Maunder, of Cornelly, Cornwall, in 1657, together with the grant of a crest. These were confirmed with differences by Edward Walker (officer of arms), 1660.)
