A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties A picture will take you to understand the eight families of the Tang and Song dynasties