Some of the most powerful daimyô maintained their own messenger networks, called ''daimyô hikyaku'' or ''shichi-ri-hikyaku'', as these networks generally had horses ready every seven ''[[ri]]'' (''shichi-ri''). The two most prominent daimyô who maintained such networks were the ''[[Gosanke]]'' Tokugawa branch families based in [[Wakayama castle|Wakayama]] and [[Nagoya castle|Nagoya]]. Messengers in the service of [[Wakayama han]] left Edo on the 5th, 15th, and 25th of each month, and left Wakayama on the 10th, 20th, and 30th. | Some of the most powerful daimyô maintained their own messenger networks, called ''daimyô hikyaku'' or ''shichi-ri-hikyaku'', as these networks generally had horses ready every seven ''[[ri]]'' (''shichi-ri''). The two most prominent daimyô who maintained such networks were the ''[[Gosanke]]'' Tokugawa branch families based in [[Wakayama castle|Wakayama]] and [[Nagoya castle|Nagoya]]. Messengers in the service of [[Wakayama han]] left Edo on the 5th, 15th, and 25th of each month, and left Wakayama on the 10th, 20th, and 30th. |