In 1574 the year Shingen died and in 1576 when his funeral was held, many documents were issued for joint recognition and guarantee by the shogunate of ownership of the inherited estate of a samurai who pledged allegiance to it (in the Kamakura and the early Muromachi periods), and in 1580, many documents related military service were issued as the conflict with Kitashiro and Tokugawa intensified as the result of the Koetsu Alliance (an alliance between the Takeda clan in Kai and the Uesugi clan in Echigo Province).
信玄死去の天正2年と葬儀の行われた天正4年は領国内における継目安堵の文書が数多く発給されており、天正8年には甲越同盟の影響による北城・徳川との対立が激化したため軍役関係の文書が数多く発給されている。