	The same year, to honour the generals and officials who had assisted his father Emperor Guangwu in reestablishing the Han Dynasty, Emperor Ming, perhaps echoing what Emperor Xuan had done, had the portraits of 28 of them drawn on a palace tower (known as "Yuntai 28 Generals"). Later, four more portraits were added. However, Ma Yuan, because he was the father of the empress, did not receive this honor.