Kubiar-Cozars or Cowari were three Kazarig-Cozar tribes who revolted against Chouvrtou's successor Batbayan-Bezmer.

677-? — the first Kubiar or Kouver revolt was in Sirmium forcing Batbayan-Bezmer to give up and withdraw to Cuzdrioara and Carpathia.

680s the Kubiar tribe of Asparukh conquered Thrace.

690s the Second Kubiar tribe to secede was Kotrag who founded Volga Bulgaria and whose descendants under Tuvan would establish the Rus' Khaganate.

Unknown khagans

729/730 ?Surakat?

c.740 Batbayan-Bezmer's descendant Bulan-Sabriel converted to Judaism by Yitzkhak Sangari.

791-795 Yugurus during Avar civil war. The Bulanids allied to Leo IV the Khazar captured Chelarevo.

795-? Kajd Tudun

795—814 — Theodorus

803-? Zodan

814— ? — Abraham (Avar khagan)

830 Kotrag's descendant Khan-Tuvan Dyggvi led his Kouver-Cozar tribe to Russia while the third Kubiar tribe to revolt was Bulan's Kabar-Cozars who would support the Hungarian succession in Pannonia because they had been conquered by Morut.

? —835 — Canizauci Tudun

ca. 829 to 838 or 820s–846 Morut/Ratimir/Mojmir I who occupied Carpathia.

867 to 894 Svatopluk I of Moravia

894 to 906 Menahem/Mojmir II of Moravia was called Menumorut (Stallion of Morut) by the Hungarians because he had many wives and was called Ben Marot by the people that are called Cozar who inhabited Carpathia.

950 Kiabar Kohen Samson and Jyedi, kyr qereji of Kazár-országa.