Formerly Stewart. Army officer and diplomatist.
This person is the subject of ongoing research. We have started by researching their relationship to the enslavement of people.
No known connections with slavery.
His half-brother, Robert Stewart, Lord Castlereagh (1769–1822), as Foreign Minister, ‘cooperated with senior officials to use the Royal Navy to detect and capture slave ships; the freed slaves were sent to freedom in a new British colony of Sierra Leone’. (‘Robert Stewart, Viscount Castlereagh’, Wikipedia [online], <https://en.wikipedia.org/wiki/Robert_Stewart,_Viscount_Castlereagh#Abolition_of_the_slave_trade> accessed 5 August 2021.) N.B. the formation of Sierra Leone was problematic; the freed people often faced dire poverty and racial tension.
National Gallery painting connections
Former owner: NG purchased in 1834: NG10.
History of Parliament Trust (ed.), The History of Parliament: British Political, Social & Local History, London 1964-, https://www.historyofparliamentonline.org/
Checked and not found — Item on publisher's website
E. M. Lloyd and A. J. Heesom, 'Vane [formerly Stewart], Charles William, third marquess of Londonderry', in C. Matthew et al. (eds), Oxford Dictionary of National Biography, Oxford 1992-, https://doi.org/10.1093/ref:odnb/26467
Checked and found — Item on publisher's website