Fang Xuanling (579–648), formal name Fang Qiao but goes by the courtesy name of Xuanling, formally Duke Wenzhao of Liang, is the lead editor of the Book of Jin and one of the most celebrated chancellors of the Chinese dynasty Tang Dynasty, and he and his colleague Du Ruhui, both serving during the reign of Emperor Taizong, are often asserted to be ideal models for chancellors.