I have some more information about the letter by Hosokawa Fujitaka. It seems that Fujitaka wrote the letter in 1572 to Toji Temple (located in Kyoto). He was given permission by Nobunaga to collect rice for emergency storage (from the Shoryuji Castle fief), but informs the temple that the rice will not collect it from part of the land. One reason why it was a request from Akechi Mitsuhide.
Tenka no tame!