This example displays a family tree of the Noble House of Sirius, rendered as hierarchical radial layout using D3’s `tree` and `hierarchy` functions. The code loads hierarchical data from a local JSON file and draws horizontal links with `linkHorizontal`, while text labels show each family member’s name. The visualization supports interactive pan and zoom through D3’s `zoom` behavior, and all elements are rendered as SVG. The styling uses a custom font and white text shadows for readability.