Gwenllian was a Welsh princess born in 1097, known for her role in resisting the Norman invasion of Wales. She was the daughter of Gruffudd ap Cynan, the King of Gwynedd, and became a symbol of Welsh nationalism. After her husband, Llywelyn the Great, was killed, she led a rebellion against the Normans, showcasing her leadership and bravery. Gwenllian's legacy is significant in Welsh history, as she is often celebrated for her contributions to the fight for Welsh independence. Her story is remembered in various cultural references, including literature and folklore, highlighting the importance of her role in Welsh heritage.