Denunciation of the Treaty on the Slave Trade, concluded on 24 May 1841, and of the additional articles of 24 May 1841, and 15 January 1846, between Great Britain and Ecuador - Treaties Collection, Vol.XI, p.462
Birth Certificate of Bertha Sophia Felicitas von Kinsky
Denunciation of the Treaty relating to Slave Trade, concluded on 4 May 1818, between Great Britain and the Netherlands and the Additional Articles of 31 December 1822, 25 January 1823, 7 February 1837, and 31 August 1848 - Treaties Collection, Vol.XI, p.464