The banner of Owain Owain Glyndŵr will be flown outside the Senedd for the first time on Saturday.
It will be the first time in 600 years that his banner has been flown outside a Welsh Parliament.
Assembly Member Adam Price had sent the Senedd’s presiding officer, Llywydd Elin Jones, a request asking if the flag could be raised.
Tomorrow will mark 617 years since Owain Glyndŵr was crowned Prince of Wales.
“As we approach 20 years since the people of Wales voted to create the National Assembly, we face a number of challenges to defend the integrity of devolution,” Adam Price said.
“Raising the banner of Owain Glyndŵr this weekend would be an appropriate recognition, I think, of his vision for a self-governing Wales which controls its own fate.
“That is something that devolution has achieved to an extent, but it reminds us that it’s something that still requires an effort from us 617 years after he was enthroned as Prince of Wales.”