Pliny the Younger (A.D. 62?c.A.D. 113). Letters. The Harvard Classics. 190914.
XXXVI. To the Emperor Trajan
I AM assured, Sir, by your freedman and receiver-general Maximus, that it is necessary he should have a party of soldiers assigned to him, over and besides the beneficiarii, whom by your orders I allotted to the very worthy Gemellinus. Those, therefore, whom I found in his service, I thought proper he should retain, especially as he was going into Paphlagonia,1 in order to procure corn. For his better protection likewise, and because it was his request, I added two of the cavalry. But I beg you would inform me, in your next despatches, what method you would have me observe for the future in points of this nature.