Countess Agnes of Württemberg was a noblewoman born in the late 13th century, specifically around 1280. She belonged to the House of Württemberg, a prominent dynasty in what is now southwestern Germany. Agnes was known for her marriage to Count Eberhard I of Württemberg, which helped strengthen political alliances in the region. Agnes played a significant role in the cultural and social life of her time. She was involved in various charitable activities and supported the development of local institutions. Her legacy is reflected in the continued prominence of the Württemberg family in German history.