Jeconias
Smith's Bible Dictionary 1863
the Greek form of Jeconiah, an altered form of Jehoiachin. [Jehoiachin]
International Standard Bible Encyclopedia 1915
jek-o-ni-as (Iechonias):
(1) One of the chiliarchs who made great gifts of sheep and calves at the Passover of Josiah (1 Esdras 1:9); called "Conaniah" in 2Ch 35:9.
(2) One reading makes Jeconias (not Joachaz) son of Josiah in 1 Esdras 1:34 margin.