The king met artists in Leeds who had taken part in the World Reimagined Globes project, which explains Britain’s role in slavery.
Fiona Compton showed him her Palace of the Peacock design, which pays homage to enslaved women who used poison to resist.
Afterwards, the St Lucian artist and historian told reporters that the king was ready to discuss Britain’s role in the slave trade.
Ms Compton, whose father was prime minister of St Lucia, said: “It’s an ongoing conversation, he says he is ready to speak on it.
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“He is ready to have these conversations and see what work can be done.
“We are not talking about reparations, this is not solely something for the British monarchy [to talk about], this is for the British people to have the conversations.
“He agrees, this is British history, it should not be hidden.
“In the same way we are speaking about the Holocaust, we should be open to speaking about Britain’s involvement in the slave trade.”