After Cyrus, there were specifically two foreign rulers over Palestine to which close and positive relationships towards the Jews were ascribed: Antiochus III (Ant. 12.138-153) and, according to Ezra 7:12ff, Artaxerxes (which one cannot be identified). However, the literary "letters" attributed to them are most likely Jewish fictions/falsifications from the 1st century B.C.E. or later. Darius' letter to Gadatas should also be considered as fictitious, since the parallel with Ezra 7:12 does not hold, and there are good reasons to question the authenticity of the "records" of Ezra 4-6.