It is said that empresses and crown princes used 'ao-itoge' (carts with blue or green threads), and joro (high rank woman servant in the Imperial Court), kojoro (certain daughters or granddaughters of daijin (the Ministers of State), nagon (the Counselors), and sangi (the Consultants) and other kugyo (senior nobles)), and churo (the middle rank woman servant in the Imperial Court) of nyobo, such as ladies-in-waiting, assistant handmaids, ladies of the handmaid's office, and so on used 'murasaki-itoge' (carts with purple threads).
皇后や皇太子は「青糸毛」、更衣(女官)・典侍・内侍司などの上臈・小上臈・中臈の女房たちは「紫糸毛」に乗ったという。