Llywelyn the Great was a prominent Welsh prince who ruled from 1195 to 1240. He is best known for uniting various Welsh territories and resisting English domination during a time of political fragmentation. His leadership helped to strengthen Welsh identity and autonomy. Llywelyn was recognized as the Prince of Gwynedd, a key region in north Wales. He played a significant role in the Welsh Wars against the English crown, particularly during the reign of King John. His legacy is celebrated in Welsh history as a symbol of resistance and national pride.