SISINNES.The governor of Cle-Syria and Phnicia under Darius (1Es_6:3; 1Es_6:7; 1Es_6:27; 1Es_7:1). In Ezr_5:3 etc., be is called Tattenai (wh. see).
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909
si-sin?ēz (Σισίννης, Sisı́nnēs): ?The eparch (governor) of Syria and Phoenicia? under Darius Hystaspis (1 Esdras 6:3, 7, 27; 7:1) circa 520 BC = ?Tattenai the governor beyond the river? in Ezr_5:3, Ezr_5:6; Ezr_6:6, Ezr_6:13. He took a prominent part in the efforts to prevent the rebuilding of the temple.
International Standard Bible Encyclopedia
PRINTER 1915.
(Σισίννης), the form in which the name of TATNAI SEE TATNAI (q.v.) of the Heb. text (Ezr_5:3; Ezr_5:6; Ezr_6:6; Ezr_6:13) appears in the Apocrypha (1Es_6:3; 1Es_6:7; 1Es_7:1) and Josephus (Ant. 11, 4, 5, 7), being that of the governor of Syria and Phoenicia under Darius, and a contemporary of Zerubbabel, who attempted to stop the rebuilding of the Temple, but was ordered by Darius, after consulting the archives of Cyrus's reign, to adopt the opposite course, and to forward the plans of Zerubbabel.
CYCLOPEDIA OF BIBLICAL, THEOLOGICAL AND ECCLESIASTICAL
press 1895.