《旧唐书·列传·卷十三》
那年，要在七个州设置官署，必须选拔才能声望都优秀的人担任职务，太宗担任雍州牧时，任命萧瑀为雍州都督。
其年，州置七职，务取才望兼美者为之。及太宗临雍州牧，以瑀为州都督。
That year, official positions were to be established in seven states. People of excellent talent and reputation had to be chosen to hold these positions. When Taizong was serving as the shepherd of Yongzhou, he appointed Xiao Yu as the governor of Yongzhou.