TAPUR
TRIBE
Map
of Greco-Bactrian Kingdom with Tapuria clearly lying on the south
shores of the Caspian sea
Tapur
clan was a clan of Scythian people that migrated from Parthyene
to central parts of southern territories of Caspian Sea during kingdom
of Phraates I when Parthian Empire became strong during Phraates
I, he attacked to Amard (another Scythian tribe) and defeated them.
Then he forced them to leave southern fringes of Caspian Sea and
replaced them with Tapur people. After this event, ancient Tapuria
was established. These Tapuri clan furnished 1,000 cavalry for the
battle of Gaugamela as Achaemenid Empire Army.
Source
:
https://en.wikipedia.org/
wiki/Tapur_tribe