It was accompanied by HMS Northumberland , with an exhibition on board commemorating the role of the Royal Navy after 1807 in the suppression of the slave trade .
The vessel housed depictions of the Zong massacre and the slave trade .
massacre was accompanied by HMS Northumberland , with an exhibition on board commemorating the role of the Royal Navy after 1807 in the suppression of the slave trade .
The vessel housed depictions of the Zong massacre and the slave trade .