Owain Gwynedd was a prominent Welsh prince who ruled during the 12th century. He was a member of the House of Gwynedd and is best known for his efforts to unite the various Welsh kingdoms against English encroachment. His reign lasted from around 1137 until his death in 1170, during which he successfully expanded his territory and strengthened his influence in Wales. Owain was also known for his patronage of the arts and literature, contributing to the rich cultural heritage of Wales. He played a significant role in the Welsh struggle for independence, and his legacy is remembered as a symbol of Welsh nationalism and resistance against foreign rule.