Although Owain Glyn Dŵr fought a number of large pitched battles he was most famous as a guerrilla fighter who used the hilly Welsh landscape to great effect. His links with the princely lines of Gwynedd, Powys and Deheubarth - and his great reputation as a leader with a clear vision for Wales’ future - gave him support all over Wales. His history has inspired a number of leaders, one of the most recent being Fidel Castro.

The Uprising had three major battles: Glyn Dŵr’s victory at the battle of Hyddgen earned him a reputation as a great military leader early in the campaign; the battle of Brynglas (Pilleth) strengthened that reputation and gained him a valuable ally in Edmund Mortimer; the battle of Pwll Melyn (Usk) late in the campaign resulted in a heavy defeat for Owain.

Less is known about other battles that were fought during the Uprising, however.