The National Trust has just released (September 2020) its 'Interim Report on the Connections between Colonialism and Properties now in the Care of the National Trust, Including Links with Historic Slavery'.
Drawing on the work of LBS and others, the Report 'details the connections between 93 of the historic places in our care and colonialism and historic slavery. The report ... is part of our commitment to ensuring links to colonialism and historic slavery are properly represented, shared and interpreted as part of a broader narrative.'
For more on this see Addressing our histories of colonialism and historic slavery
Read or download (pdf) the National Trust Report).
The report has become the subject of much controversy. You can read a commentary by Charlotte Riley on ‘Culture wars in country houses: what the National Trust controversy tells us about British history today’ here.