After the crown prince died, his daughters were promoted from princess (junzhu) to princess (gongzhu) [1], and his son assumed the title of Prince Huai.
Princess Jiuli and Princess Jiuling were the two who were elevated from princess (junzhu).
When Jiuli was born, the former emperor succeed in forging the weapons, so he gave the young princess (junzhu) a name from ancient times.
Two years later, Jiuling was born. Nothing particularly exciting happened, so she wasn't any sort of a lucky omen. Her birth, instead, made everyone lose hope.
The crown prince and the crown princess consort had already been married for four years. They had had a daughter, so they should now have had a son. As this was related to the imperial family’s succession and the crown prince's body had never been well, if they had had a son, then the line of succession would have been made clear.
