Japan - Japan; 古地図資料出版株式会社 - Hōreki Daimyō Ichiran-zu - 1921-1950

The Hōreki Daimyō Ichiran-zu is an illustrated chart created during the Hōreki era (1751–1764) of the Edo period, depicting a comprehensive list of feudal lords (daimyō) across Japan. This chart served as a visual reference to understand the political structure of the Tokugawa shogunate, presenting the hierarchy, family crests (mon), and domains of each daimyō.

The chart typically includes:
Names of major daimyō families
Their respective domains and territories
Family crests used as heraldic symbols
Classification such as fudai, tozama, and shinpan daimyō
Relative status and political relationships within the shogunate

Because the Edo period maintained a rigid feudal order, documents like this were essential for officials, scholars, and travelers to grasp the complex territorial and political landscape of Japan.

Today, the Hōreki Daimyō Ichiran-zu is valued as a historical artifact that reveals the structure of feudal governance, heraldic culture, and the political geography of mid-18th-century Japan. It is a significant reference for historians, collectors of Japanese maps, and enthusiasts of Edo-period culture.