The House of Sayn is a noble family from Germany, with roots tracing back to the early Middle Ages. It originated in the region of Sayn, near the Rhine River, and has played a significant role in the history of the area, particularly during the Holy Roman Empire. Members of the House of Sayn have held various titles, including counts and princes, and have been influential in regional politics. The family is known for its connections to other noble houses in Europe, contributing to its prominence in the German nobility and beyond.