The succession, subdivision, and evolution of the noble lineages were the most important factors that influenced the political structure of the Western Zhou dynasty (1046-771 BCE). The family structures and personal relationships embodied in inscriptions are the most important materials for organizing family genealogies in the study of noble lineages of the Western Zhou. This paper takes the example of several noble families in the royal domains, analyzes in detail the family structure being reflected in bronze inscriptions, the significance of granting new land to sublineages, the relationship between the patriarchs and their branches, and the activities of non-lineage heads in family rituals. It explores new changes in the patriarchal system occurred in the late Western Zhou.