Rhun then assembled an army and proceeded to the banks of the Gweryd (the banks of the River Forth or the Firth of Forth, which William Forbes Skene says was still called the 'Weryd' in 1165) in the North. The final outcome is not given in the Venedotian Code, but Rhun and his army remained in the North for a considerable length of time. The outcome according to Taliesin's "Marwnad Rhun" is the death of Rhun ap Maelgwn in battle. He was succeeded by his son Beli ap Rhun as King of Gwynedd.