He was the third son of Emperor Qianlong of the Qing Dynasty. The mother was the imperial concubine Chunhui. In the 13th year of Qianlong's reign, Empress Xiaoxian passed away. Because she did not express enough grief for the empress' death, the third elder brother Long severely reprimanded her and made it clear that she would deprive her son of the right to inherit. In July of the 25th year of Qianlong's reign, he passed away (from Baidu)
He is the Potions Professor at Hogwarts School of Witchcraft and Wizardry, Head of Slytherin House, and the youngest Potions Master. However, he became a double agent for the girl he once had a crush on, wandering between light and darkness, and finally died under the fangs of his lover's child at the age of 38.
Zhang: I heard from Lucius that Sif has a girl he likes~! O(∩_∩)O~
Sev: (Lucius, your beauty potion is out this month -_-#) I think I can tell the difference between then and now. Moreover, if your brain is not filled with splendens, you should remember who was so shameless that she insisted on putting a ring on me (extending her left hand), eh~ Mrs. Snape
Zhang: Haha (laughing dryly, turning around to run)
Sif grabbed it and carried it to the bedroom!
Zhang: I was wrong! Sev, let me go! Ah——