Bo Qin (Chinese: 伯禽; pinyin: Bóqín), also known as Qin Fu (禽父), also known by his posthumous name as the Duke Tai of Lu (魯太公), was the founder of the Lu state, a dynastic vassal state of the Zhou dynasty.
Born into the royal Ji family, he was the eldest son of Dan, the Duke of Zhou. Instead of inheriting his father's estate in Zhou, he was granted the newly established State of Lu centered at Qufu. He is thought to have ruled Lu from around 1042 to 997 BC.
Lu (Chinese: 魯; c. 1042 – 249 BC) was a vassal state during the Zhou dynasty of ancient China located around modern southwest Shandong. Founded in the 11th century BC, its rulers were from a cadet branch of the House of Ji (姬) that ruled the Zhou dynasty. The first duke was Boqin, a son of the Duke of Zhou, who was brother of King Wu of Zhou and regent to King Cheng of Zhou.
Lu was the home state of Confucius as well as Mozi, and, as such, has an outsized cultural influence among the states of the Eastern Zhou and in history. The Annals of Spring and Autumn, for instance, was written with the Lu rulers' years as their basis. Another great work of Chinese history, the Zuo Zhuan or Commentary of Zuo, was traditionally considered to have been written in Lu by Zuo Qiuming.