Dan, Duke Wen of Zhou, commonly known as the Duke of Zhou, was a member of the royal family of the early Zhou dynasty who played a major role in consolidating the kingdom established by his elder brother King Wu. Wikipedia
Nephews: King Cheng of Zhou and Shu Yu of Tang
Full name: Dan Ji
Grandchildren: Duke Kao of Lu and Duke Yang of Lu
Grandparent: Tai Ren
Great grandchildren: Lu Weigong and Duke You of Lu
Niece: Da Ji