Researching her recent post on the Monteath Mausoleum in the Scottish Borders, the Folly Flâneuse chanced upon a mention of a mausoleum at Windlestone, County Durham. Further investigation revealed that the Windlestone and Monteath mausolea are siblings, realised by the same architect and builder, at the same date. Sadly, whilst the Monteath mausoleum has been restored to its former glory, that at Windlestone was demolished late in the 20th century.