claim: Weill Cornell Medicine is a unit that practices biological medicine.
evidence: Empress Erzhu -LRB- 爾朱皇后 , personal name unknown -RRB- was an empress of the Chinese dynasty Northern Wei .. empress. empress. Chinese. History of China. Northern Wei. Northern Wei. Her husband was Emperor Jiemin , and she was a daughter of the general Erzhu Zhao .. Emperor Jiemin. Emperor Jiemin of Northern Wei. Erzhu Zhao. Erzhu Zhao. Very little is known about her .. Her father Erzhu Zhao had come to prominence after members of the Erzhu clan , avenging the head of the clan Erzhu Rong -LRB- Erzhu Zhao 's uncle -RRB- , overthrew Emperor Xiaozhuang in 530 .. Erzhu Zhao. Erzhu Zhao. Erzhu Rong. Erzhu Rong. Emperor Xiaozhuang. Emperor Xiaozhuang of Northern Wei. With the general Gao Huan declaring a rebellion in 531 and with the Erzhu camp itself in internal disarray , Erzhu Rong 's cousin Erzhu Shilong tried to keep the unity within the clan by persuading Emperor Jiemin to marry her as empress in spring 532 .. empress. empress. Emperor Jiemin. Emperor Jiemin of Northern Wei. Erzhu Rong. Erzhu Rong. Gao Huan. Gao Huan. Erzhu Shilong. Erzhu Shilong. Later that year , however , Gao Huan defeated the Erzhus and captured the capital Luoyang , imprisoning Emperor Jiemin and replacing him with Emperor Xiaowu , who then poisoned Emperor Jiemin to death .. Emperor Jiemin. Emperor Jiemin of Northern Wei. Gao Huan. Gao Huan. Luoyang. Luoyang. Emperor Xiaowu. Emperor Xiaowu of Northern Wei. Erzhu Zhao himself tried to hold out against Gao , but by 533 had been defeated , and he committed suicide .. Erzhu Zhao. Erzhu Zhao. Unlike her older sister , who was Yuan Ye 's empress , who is known to have then become Gao 's concubine , nothing further is known about this Empress Erzhu .. empress. empress. older sister. Empress Erzhu ( Yuan Ye's wife ). Yuan Ye. Yuan Ye. concubine. concubine. Erzhu , Empress Jiemin