February 22nd, 1403 - The town of Hope was liberated by Glyndŵr’s men.

May 15th, 1403 - Prince Henry - the son of Henry IV - destroyed Glyndŵr's homes at Sycharth and Glyndyfrdwy.

June 1403 - Prince Henry ordered the bailiffs in the Hundred of Wirral to prohibit the sale of grain or provisions to the Welshmen of Flint or other parts of Wales.

June 24th, 1403 - The Welsh of Brycheiniog attacked Brecon Castle.

 July 3rd, 1403 - After they had put Llandovery Castle under siege, Glyndŵr’s army continued down the Towy valley.

July 3rd, 1403 - At Llandeilo Fawr Glyndŵr joined up with Henry Dwn who had attacked Dinefwr Castle.

July 5th, 1403 - Glyndŵr and 800 men attacked Carreg Cennen Castle, which was defended by John Scudamore.

July 1403 - Glyndŵr took the castles of Dryslwyn, Llansteffan and Newcastle Emlyn - and also Carmarthen on July 6th.

July 8th, 1403 - Glyndŵr visited Hopcyn ap Tomas ab Einion in Laugharne for advice as he was a ‘master of Brut’.

July 11th, 1403 - Lord Carew’s men defeated part of Glyndŵr’s army near St Clears.

July 21st, 1403 - The Battle of Shrewsbury.

July/August 1403 - Glyndŵr moved through South Wales and Hywel Gwynedd attacked in the North.

August 13th, 1403 - Henry Dwn and his son led an attack on Kidwelly Castle.

September 24th, 1403 – Henry IV arrived at Carmarthen on a ‘Royal Expedition’.

November - A French fleet joined Glyndŵr in attacking Caernarfon Castle.

By December 1403 - Glyndŵr controlled almost the whole of Wales.