| Name | Date | Notes | Search |
|---|---|---|---|
| Yang Jingfeng 楊景風 | 764 | Worked on calendar reforms under Dezong's 德宗 reign around the year 783 (建中四年). See Xin Tang shu 新唐書, fasc. 29. | Yang Jingfeng 楊景風 Worked on calendar reforms under Dezong's 德宗 reign around the year 783 (建中四年). See Xin Tang shu 新唐書, fasc. 29. |