Janibek 's father was Barak Khan who was poisoned by emirs of the former White Horde .
Janibek Khan was a co-leader of a new Kazakh Khanate , following a successful rebellion against the Uzbek Khan Abu'l - Khayr Khan in 1465 and 1466 .
co-leader 's father was Barak Khan who was poisoned by emirs of the former White Horde .
Janibek Khan was a co-leader of a new Kazakh Khanate , following a successful rebellion against the Uzbek Khan Abu'l - Khayr Khan in 1465 and 1466 .