The Duke of Zhou was a prominent figure in ancient China, known for his role during the early Zhou Dynasty. He was the younger brother of King Wu, the founder of the dynasty, and played a crucial part in consolidating power after the overthrow of the Shang Dynasty. His contributions to governance and culture helped establish the foundations of the Zhou political system. Renowned for his wisdom and virtue, the Duke of Zhou is often credited with authoring important texts, including the Book of Rites. He is also celebrated for his efforts in promoting moral governance and the concept of the "Mandate of Heaven," which justified the rule of the Zhou kings.