Alba Bulgarica also known as Vojvodina and Syrmia or Sirmium, or Sarmatia or Savromat, Sabir, Alan, ˀln (אלן), Elicanum, Arsiya and Utigur Bulgaria or the Bogomils, Bosniak Church, Cathars, Paulicians, Tazigane, or Messiani were a Messianic Noahide commumity which existed in the 8th to 12th century in greater Banat under the rule of Galad, Sabriel, Salan, Gelu, Morut, Ajtony and Csanad. The community was succeeded by the Szekely Sabbatarians in the East and the Bosnian Church in the West and the Moravian Church in the North. The Sarmatian inhabitants were allied to the Romanians and to the Kalismani and thus were sometimes identified with the latter (Kutrigurs) as the Cozar people of Crisana, Galycivka and Cuzdrioara.

The state is supposed to have begun with Aladarius' 3000 Utigur Bulgar-Huns who escaped decimation and migrated from the plain of Chiglamezei to Romania towards the end of the 6th century. There their remnant were known as Kurt's Aquila Szekley towards the end of the 7th century who initially resisted the arrival of the Kutrigur Khagan Csaba's son Edumen of Moravia. Edumen established a peace treaty with the Utigur Aquilas by inviting Galad of Vidin to power in the Greater area of Banat around 740CE. Galad's son Sabriel (often misidentified with Bulan) converted to Noahide Judaism under the influence of thousands of Paulician Alevis brought into his lands by the Byzantines.

The Kuber Bulgarians were their leaders until they lost influence in the First Bylgarian Empire which had become very Slavonic and so the Szekely-speaking Utigurs ruled their own practically independent Bogomil state of White Bulgarica in Banat until the official Bulgarian Church sided with the Byzantines against them. Their state surrendered to the Khazar Khan Joseph in the 920s and survived the Rus defeat of Khazaria until the 12th century when it was succeeded by the Bans of Bosnia and later by Counts of the Szekelys and thr Hussites.