Prince of Hongnong
In 908, Yang Wo was assassinated by his guard commanders Zhang Hao and Xu Wen, who declared his younger brother Yang Longyan the new Prince of Hongnong. Xu soon killed Zhang and took over as regent of the Hongnong state. Under the requests of the Hongnong officials, Li Yan, still serving as Emperor Zhaozong's representative, bestowed on Yang Longyan the titles of military governor of Huainan, the supreme commander of the eastern circuits, honorary chancellor title of "Tong Zhongshu Menxia Pingzhangshi" (同中書門下平章事), and Prince of Hongnong.