The Yang clan of Hongnong (弘農楊氏) was a prominent Chinese clan known for producing many high-ranking officials and imperial concubines. Their ancestral home was Hongnong Commadery (農楊郡). It is noted that the Yang clan of Hongnong may originate from Yangshe clan (羊舌氏).
The first notable member of this clan was Yang Chang (楊敞), who served as prime minister during the Western Han dynasty.:zh:氏族志
The Hongnong Yang clan tomb in Shaoguan County, Shaanxi Province, has been used for several generations since Yang Zhen.Zhi Dao, From Xia Dynasty to Qing Dynasty: An Overview of the History of Chinese Dynasties
According to the Book of Sui, Yang Jian, the founding emperor of the Sui dynasty, was born to the Yang clan of Hongnong, and was a descendant of Yang Zhen.魏徵等撰《隋書》卷1〈帝紀〉：(高祖文皇帝姓楊氏，諱堅，弘農郡華陰人也。漢太尉震八代孫鉉，仕燕為北平太守。鉉生元壽，後魏代為武川鎮司馬，子孫因家焉。) Sui Shu, vol.01
Notable people
Males Yang Chang (楊敞; died 19 September 74 BC([元平元年]八月，己巳，安平敬侯杨敞薨。) Zizhi Tongjian, vol.24) – He served as prime minister during the reign of Emperor Zhao of Han, and was also a son-in-law of Sima Qian.(子忠嗣，...忠弟恽，字子幼，....恽母，司马迁女也。) Han Shu, vol.66 (biography of Yang Chang) Yang Chang's son Yang Yun (楊惲; died 54 BC) helped to disseminate his maternal grandfather's magnum opus: the Shiji.Han Shu, vol.62 (biography of Sima Qian) Yang Bao (楊寶) – He was a great-grandson of Yang Chang and a scholar of Classic of History during the end of the Western Han dynasty. He lived and taught in seclusion. Yang Zhen (楊震; 50s - April 124Vol.50 of Zizhi Tongjian recorded that Yang Zhen poisoned himself in the 3rd month of the 3rd year of the Yanguang era of the reign of Emperor An of Han; the month corresponds to 2 Apr to 1 May 124 in the Julian calendar. Yang's biography in Houhanshu recorded that he was in his 70s when he died.) – He was the son of Yang Bao, and was an official of the Eastern Han dynasty.Book of the Later Han, biography of Yang Zhen. Yang Fu (楊敷) – He was a grandson of Yang Zhen and was known for his good personal qualities. Yang Fu (楊馥)– He was a grandson of Yang Zhen. He was appointed as a Gentlemen Cadet and become the Commander of the Guards.A Biographical Dictionary of Later Han to the Three Kingdoms (23-220 AD).pp.950 Yang Ci (楊賜; died November 185Yang Ci's biography in Houhanshu recorded that he died in the 9th month of the 2nd year of the Zhongping era of the reign of Emperor Ling of Han (12 Oct to 9 Nov 185 in the Julian calendar). Vol.25 of Annals of the Later Han by Yuan Hong recorded that he died in the 10th month of that year (10 Nov to 9 Dec 185). The annals of Emperor Ling in Houhanshu and vol.58 of Zizhi Tongjian recorded that he died on the gengyin day of the 10th month of that year (no corresponding date in the Julian calendar); the gengyin day of the 9th month corresponds to 4 Nov 185.) – He was a grandson of Yang Zhen (楊震), and a tutor to Emperor Ling. He became Minister Steward and Minister of the Household. From March to August 173, Yang Ci was appointed as Excellency of the Works and from January 177 to 4 February 178, he became Excellency of the Masses. Yang Biao (楊彪; 142-225(年八十四，黃初六年卒於家。) Houhanshu, vol.54) – He was a son of Yang Ci (禓賜) and a scholar of the Han dynasty. He became a consultant and joined the group of scholars who were ordered to prepare a fourth installment of the Record of Han. Yang Xiu (楊修) – He was the son of Yang Biao (楊彪) and an official and adviser serving under the warlord Cao Cao. He also served as registrar of the imperial chancellor (丞相主簿). Yang Su (楊素) – He was a military strategist during the Sui dynasty. He held the title of Duke of Chu (楚国公). He was posthumously honoured as Duke Jingwu of Chu (楚景武国公). Yang Yuqing (楊虞卿) – He was a close associate of Emperor Wenzong of Tang and the mayor of Jingzhao Municipality.
Females
Imperial Consorts Imperial ConsortEmperorSonsDaughtersEmpress WuyuanEmperor Wu of Jin1. Sima Gui, Prince Dao of Piling 2. Emperor Xiaohui3. Sima Jian, Prince Xian of Qin1. Princess Pingyang2. Princess Xinfeng (新豐公主)3. Princess YangpingEmpress Wudao1. Sima Hui, Prince Shang of BohaiImperial Concubine YangEmperor Gaozu of Tang26. Li Yuanxiang, Prince Jiang'anPrincess consortEmperor Taizong of Tang14. Li Ming, Prince Gong of CaoEmpress YuanxianEmperor Xuanzong of Tang3. Emperor Suzong of Tang8. Princess QiNoble Consort YangEmperor Xuanzong of Tang and Li MiaoWorthy Consort YangEmperor Muzong of Tang8. Li Rong, Prince AnWorthy Consort YangEmperor Wenzong of TangEmpress Yang (Alleged)Emperor Ningzong of Song dynasty1. Zhao Zeng (prince) 2. Zhao Jiong (prince) 3. Zhao Xun (crown prince) adopted 4. Zhao Hong (crown prince) adopted 5. Zhao Yun (Emperor Lizong) adopted
Others Lady Yang, daughter of Yang Kan, Duke of Jibei (济北国公 杨侃) and wife of Wei Xiaokuan Princess Consort of Chao (巢王妃 弘農楊氏), niece of Yang Gongren and wife of Li Yuanji Princess Consort of Wu (吳王妃弘農楊氏), wife of Li Ke, Prince of Yuling Crown Princess Yang (杨太子妃), wife of Li Chongjun, Crown Prince Jiemin
Notes
References
Sources Vol.33 of Book of Sui (隋书·卷三十三·志第二十八：《杨氏血脉谱》二卷) Vol.204 of History of Song (宋史·卷二百四·志第一百五十七：杨侃《家谱》一卷)