新唐書
Very little is known about Xiao Zhi's career. His family descended from the imperial house of Liang Dynasty and had a number of members who served as chancellor during Tang Dynasty, including his great-great-grandfather Xiao Song and his grandfather Xiao Fu. However, he had no biography in either of the official histories of Tang, the "Old Book of Tang" and the "New Book of Tang" — although the "New Book of Tang" noted in his grandfather Xiao Fu's biography: