Sonpi Bunmyaku

Sonpi Bunmyaku (尊卑分脈) is a Japanese genealogical text.

Originally written by Tōin Kinsada in the late 14th century, it was either 15 or 16 volumes in length.

This was followed by re-edited editions eventually bringing the text to thirty volumes in length.

The full title is 新編纂圖本朝尊卑分脈系譜雜類要集; it is a collection of genealogies of noble people.

The book is considered one of the primary sources for the study of genealogies of nobility in Japan, in particular for nobles of Heian and Kamakura periods.