 In 602, after Yang Su's victory over Tujue, Yang Xuangan was promoted to "Zhuguo" (柱國, second rank, first division) -- the same rank that his father was at, and at imperial gatherings, father and son stood in the same area.Soon thereafter, Emperor Wen demoted Yang Xuangan down to third rank, and Yang Xuangan thanked Emperor Wen appropriately, "I did not know that Your Imperial Majesty would give me this much favor -- so that I can show respect to my father in public as much as I do in private.