The Sasinthēne Empire of Tanthes preceded Panarine and founded the right which Giraïr Danechē leveraged to bring most of the Crown to heel under the blessing of Tanthes. The Empire of Tanthes was not one political entity, but a succession of polities and interregna which ruled the Crown from Tanthes for nearly 2000 years, stemming from the first colonial settlements in Iantōs and on the Sea of Goent. Crown Sasinthēnes descend from those assimilated under those millennia of Tanthēne rule. The last Empire of Tanthes was more aptly a city state or small domain, ruled by a cabal of Magi. This cabal is better known, however, for prostrating before Adanōs and hearing the renewed word of the God of Sasinthy.
Tanthes– a name with no root in Sasinthy– came to primacy as a tributary state to Ōnavara. In legend, it was pacified by Danaōchon Matoua of the house Òxianopha, the unifier of the Sasinthēnes under the rule of Ōnavara. Panarine and therefore the modern Sasinthēne Empire is the foremost legacy of that of Tanthes, but Tanthes was also responsible for making the region of Belethion, also called Peloïssod, the vast stretch of ancient Hesod which lay between the Orod and Laham rivers, Sasinthēne. Because it was pacified under the Tanthēne regime, this vast territory posed little opposition to the Giraïr emperors in their long tenure as rulers of the Sasinthēne world.